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490437920 = 25573971103
BaseRepresentation
bin11101001110110…
…111110100100000
31021011211211100102
4131032313310200
52001023003140
6120355441532
715103440110
oct3516676440
91234754312
10490437920
112319262a5
121182b62a8
137a7b796b
14491c7040
152d0c9e15
hex1d3b7d20

490437920 has 96 divisors (see below), whose sum is σ = 1328721408. Its totient is φ = 167574528.

The previous prime is 490437863. The next prime is 490437973. The reversal of 490437920 is 29734094.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 444089 + ... + 445191.

It is an arithmetic number, because the mean of its divisors is an integer number (13840848).

Almost surely, 2490437920 is an apocalyptic number.

490437920 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 490437920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (664360704).

490437920 is an abundant number, since it is smaller than the sum of its proper divisors (838283488).

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

490437920 is a wasteful number, since it uses less digits than its factorization.

490437920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1522 (or 1514 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 490437920 is about 22145.8330166196. The cubic root of 490437920 is about 788.6083066039.

It can be divided in two parts, 4904 and 37920, that added together give a palindrome (42824).

The spelling of 490437920 in words is "four hundred ninety million, four hundred thirty-seven thousand, nine hundred twenty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 32 35 40 56 70 80 112 140 160 224 280 397 560 794 1103 1120 1588 1985 2206 2779 3176 3970 4412 5515 5558 6352 7721 7940 8824 11030 11116 12704 13895 15442 15880 17648 22060 22232 27790 30884 31760 35296 38605 44120 44464 55580 61768 63520 77210 88240 88928 111160 123536 154420 176480 222320 247072 308840 437891 444640 617680 875782 1235360 1751564 2189455 3065237 3503128 4378910 6130474 7006256 8757820 12260948 14012512 15326185 17515640 24521896 30652370 35031280 49043792 61304740 70062560 98087584 122609480 245218960 490437920