472993812 has 36 divisors (see below), whose sum is σ = 1199903796. Its totient is φ = 157100160.

The previous prime is 472993769. The next prime is 472993831. The reversal of 472993812 is 218399274.

It can be written as a sum of positive squares in 2 ways, for example, as 384708996 + 88284816 = 19614^2 + 9396^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 13263 + ... + 33494.

It is an arithmetic number, because the mean of its divisors is an integer number (33330661).

Almost surely, 2^472993812 is an apocalyptic number.

It is an amenable number.

472993812 is an abundant number, since it is smaller than the sum of its proper divisors (726909984).

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

472993812 is a wasteful number, since it uses less digits than its factorization.

472993812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47048 (or 47043 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 472993812 is about 21748.4209081947. The cubic root of 472993812 is about 779.1453558236.

The spelling of 472993812 in words is "four hundred seventy-two million, nine hundred ninety-three thousand, eight hundred twelve".