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544146240 = 2635112272
BaseRepresentation
bin100000011011110…
…000001101000000
31101220220111022110
4200123300031000
52103300134430
6125554535320
716325111121
oct4033601500
91356814273
10544146240
1125a17a140
12132297540
1388970c31
14523a8048
1532b887b0
hex206f0340

544146240 has 168 divisors, whose sum is σ = 1893064032. Its totient is φ = 131333120.

The previous prime is 544146223. The next prime is 544146241. The reversal of 544146240 is 42641445.

It is a happy number.

It is a super-2 number, since 2×5441462402 = 592190261012275200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 544146198 and 544146207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (544146241) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2397007 + ... + 2397233.

Almost surely, 2544146240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 544146240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (946532016).

544146240 is an abundant number, since it is smaller than the sum of its proper divisors (1348917792).

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

544146240 is a wasteful number, since it uses less digits than its factorization.

544146240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485 (or 248 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

The square root of 544146240 is about 23326.9423628559. The cubic root of 544146240 is about 816.4041634917.

Adding to 544146240 its reverse (42641445), we get a palindrome (586787685).

It can be divided in two parts, 5441 and 46240, that added together give a triangular number (51681 = T321).

The spelling of 544146240 in words is "five hundred forty-four million, one hundred forty-six thousand, two hundred forty".