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404024160 = 25356531289
BaseRepresentation
bin11000000101001…
…110101101100000
31001011020112221210
4120011032231200
51311412233120
6104031350120
713004102001
oct3005165540
91034215853
10404024160
11198074371
12b3382340
1365920167
143b9311a8
152570ace0
hex1814eb60

404024160 has 96 divisors (see below), whose sum is σ = 1275613920. Its totient is φ = 107491328.

The previous prime is 404024149. The next prime is 404024161. The reversal of 404024160 is 61420404.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404024161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 312796 + ... + 314084.

It is an arithmetic number, because the mean of its divisors is an integer number (13287645).

Almost surely, 2404024160 is an apocalyptic number.

404024160 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 404024160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (637806960).

404024160 is an abundant number, since it is smaller than the sum of its proper divisors (871589760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

404024160 is a wasteful number, since it uses less digits than its factorization.

404024160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1960 (or 1952 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 404024160 is about 20100.3522357197. The cubic root of 404024160 is about 739.2689151656.

Adding to 404024160 its reverse (61420404), we get a palindrome (465444564).

The spelling of 404024160 in words is "four hundred four million, twenty-four thousand, one hundred sixty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 80 96 120 160 240 480 653 1289 1306 1959 2578 2612 3265 3867 3918 5156 5224 6445 6530 7734 7836 9795 10312 10448 12890 13060 15468 15672 19335 19590 20624 20896 25780 26120 30936 31344 38670 39180 41248 51560 52240 61872 62688 77340 78360 103120 104480 123744 154680 156720 206240 309360 313440 618720 841717 1683434 2525151 3366868 4208585 5050302 6733736 8417170 10100604 12625755 13467472 16834340 20201208 25251510 26934944 33668680 40402416 50503020 67337360 80804832 101006040 134674720 202012080 404024160