320461880 has 32 divisors (see below), whose sum is σ = 744301440. Its totient is φ = 124049280.

The previous prime is 320461879. The next prime is 320461931. The reversal of 320461880 is 88164023.

It is a congruent number.

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, 127979 + ... + 130458.

It is an arithmetic number, because the mean of its divisors is an integer number (23259420).

Almost surely, 2^320461880 is an apocalyptic number.

It is an amenable number.

320461880 is an abundant number, since it is smaller than the sum of its proper divisors (423839560).

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

320461880 is a wasteful number, since it uses less digits than its factorization.

320461880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258479 (or 258475 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 320461880 is about 17901.4491033547. The cubic root of 320461880 is about 684.3193053375.

The spelling of 320461880 in words is "three hundred twenty million, four hundred sixty-one thousand, eight hundred eighty".