320976128 has 36 divisors (see below), whose sum is σ = 698949888. Its totient is φ = 145896960.

The previous prime is 320976127. The next prime is 320976143. The reversal of 320976128 is 821679023.

It is a junction number, because it is equal to n+sod(n) for n = 320976091 and 320976100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320976121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54176 + ... + 59807.

Almost surely, 2^320976128 is an apocalyptic number.

It is an amenable number.

320976128 is an abundant number, since it is smaller than the sum of its proper divisors (377973760).

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

320976128 is a wasteful number, since it uses less digits than its factorization.

320976128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114010 (or 113996 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 320976128 is about 17915.8066522275. The cubic root of 320976128 is about 684.6851541182.

The spelling of 320976128 in words is "three hundred twenty million, nine hundred seventy-six thousand, one hundred twenty-eight".