497744640 has 108 divisors (see below), whose sum is σ = 1722184464. Its totient is φ = 132728832.

The previous prime is 497744629. The next prime is 497744657. The reversal of 497744640 is 46447794.

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10084 + ... + 33123.

Almost surely, 2^497744640 is an apocalyptic number.

497744640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

497744640 is an abundant number, since it is smaller than the sum of its proper divisors (1224439824).

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

497744640 is a wasteful number, since it uses less digits than its factorization.

497744640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43234 (or 43217 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 45.

The square root of 497744640 is about 22310.1913931728. The cubic root of 497744640 is about 792.5053401837.

The spelling of 497744640 in words is "four hundred ninety-seven million, seven hundred forty-four thousand, six hundred forty".