479912644 has 24 divisors (see below), whose sum is σ = 868878360. Its totient is φ = 231757056.

The previous prime is 479912639. The next prime is 479912683. The reversal of 479912644 is 446219974.

It can be written as a sum of positive squares in 4 ways, for example, as 146119744 + 333792900 = 12088^2 + 18270^2 .

It is a super-2 number, since 2×479912644² = 460632291742141472, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 479912594 and 479912603.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8442 + ... + 32110.

It is an arithmetic number, because the mean of its divisors is an integer number (36203265).

Almost surely, 2^479912644 is an apocalyptic number.

It is an amenable number.

479912644 is a deficient number, since it is larger than the sum of its proper divisors (388965716).

479912644 is a wasteful number, since it uses less digits than its factorization.

479912644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23847 (or 23845 counting only the distinct ones).

The product of its digits is 435456, while the sum is 46.

The square root of 479912644 is about 21906.9085906707. The cubic root of 479912644 is about 782.9260271329.

The spelling of 479912644 in words is "four hundred seventy-nine million, nine hundred twelve thousand, six hundred forty-four".