497644560 has 560 divisors, whose sum is σ = 2107793664. Its totient is φ = 106748928.

The previous prime is 497644541. The next prime is 497644571. The reversal of 497644560 is 65446794.

497644560 is a `hidden beast` number, since 49 + 7 + 6 + 44 + 560 = 666.

It is a tau number, because it is divible by the number of its divisors (560).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 9389494 + ... + 9389546.

Almost surely, 2^497644560 is an apocalyptic number.

497644560 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 497644560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1053896832).

497644560 is an abundant number, since it is smaller than the sum of its proper divisors (1610149104).

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

497644560 is a wasteful number, since it uses less digits than its factorization.

497644560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114 (or 93 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The square root of 497644560 is about 22307.9483592732. The cubic root of 497644560 is about 792.4522210777.

The spelling of 497644560 in words is "four hundred ninety-seven million, six hundred forty-four thousand, five hundred sixty".