472878864 has 80 divisors (see below), whose sum is σ = 1380417600. Its totient is φ = 154946304.

The previous prime is 472878841. The next prime is 472878881. The reversal of 472878864 is 468878274.

It is a happy number.

It is a super-2 number, since 2×472878864² = 447228840035860992, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 472878864.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16212 + ... + 34764.

It is an arithmetic number, because the mean of its divisors is an integer number (17255220).

Almost surely, 2^472878864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 472878864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (690208800).

472878864 is an abundant number, since it is smaller than the sum of its proper divisors (907538736).

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

472878864 is a wasteful number, since it uses less digits than its factorization.

472878864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18629 (or 18617 counting only the distinct ones).

The product of its digits is 4816896, while the sum is 54.

The square root of 472878864 is about 21745.7780729961. The cubic root of 472878864 is about 779.0822341687.

The spelling of 472878864 in words is "four hundred seventy-two million, eight hundred seventy-eight thousand, eight hundred sixty-four".