479664860 has 72 divisors (see below), whose sum is σ = 1104964224. Its totient is φ = 174689280.

The previous prime is 479664841. The next prime is 479664869. The reversal of 479664860 is 68466974.

It is a junction number, because it is equal to n+sod(n) for n = 479664799 and 479664808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (479664869) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 177842 + ... + 180518.

Almost surely, 2^479664860 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 479664860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (552482112).

479664860 is an abundant number, since it is smaller than the sum of its proper divisors (625299364).

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

479664860 is a wasteful number, since it uses less digits than its factorization.

479664860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2751 (or 2732 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 50.

The square root of 479664860 is about 21901.2524756006. The cubic root of 479664860 is about 782.7912595926.

The spelling of 479664860 in words is "four hundred seventy-nine million, six hundred sixty-four thousand, eight hundred sixty".