472057686 has 32 divisors (see below), whose sum is σ = 1061665920. Its totient is φ = 155455272.

The previous prime is 472057657. The next prime is 472057687. The reversal of 472057686 is 686750274.

472057686 is a `hidden beast` number, since 4 + 72 + 0 + 576 + 8 + 6 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (472057687) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 48180 + ... + 57143.

It is an arithmetic number, because the mean of its divisors is an integer number (33177060).

Almost surely, 2^472057686 is an apocalyptic number.

472057686 is an abundant number, since it is smaller than the sum of its proper divisors (589608234).

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

472057686 is a wasteful number, since it uses less digits than its factorization.

472057686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105417 (or 105411 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 45.

The square root of 472057686 is about 21726.8885485244. Note that the first 3 decimals coincide. The cubic root of 472057686 is about 778.6310010056.

The spelling of 472057686 in words is "four hundred seventy-two million, fifty-seven thousand, six hundred eighty-six".