320056320 has 176 divisors, whose sum is σ = 1042299648. Its totient is φ = 83804160.

The previous prime is 320056283. The next prime is 320056343. The reversal of 320056320 is 23650023.

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, 1028965 + ... + 1029275.

Almost surely, 2^320056320 is an apocalyptic number.

320056320 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 320056320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (521149824).

320056320 is an abundant number, since it is smaller than the sum of its proper divisors (722243328).

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

320056320 is a wasteful number, since it uses less digits than its factorization.

320056320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406 (or 388 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 320056320 is about 17890.1179425961. The cubic root of 320056320 is about 684.0305037523.

The spelling of 320056320 in words is "three hundred twenty million, fifty-six thousand, three hundred twenty".