497590640 has 40 divisors (see below), whose sum is σ = 1168371648. Its totient is φ = 197062400.

The previous prime is 497590633. The next prime is 497590651. The reversal of 497590640 is 46095794.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 497590591 and 497590600.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 22712 + ... + 38871.

Almost surely, 2^497590640 is an apocalyptic number.

497590640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

497590640 is an abundant number, since it is smaller than the sum of its proper divisors (670781008).

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

497590640 is a wasteful number, since it uses less digits than its factorization.

497590640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61697 (or 61691 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 44.

The square root of 497590640 is about 22306.7397886827. The cubic root of 497590640 is about 792.4235991987.

The spelling of 497590640 in words is "four hundred ninety-seven million, five hundred ninety thousand, six hundred forty".