320920924 has 6 divisors (see below), whose sum is σ = 561611624. Its totient is φ = 160460460.

The previous prime is 320920889. The next prime is 320920933. The reversal of 320920924 is 429029023.

It is a super-2 number, since 2×320920924² = 205980478922027552, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40115112 + ... + 40115119.

Almost surely, 2^320920924 is an apocalyptic number.

It is an amenable number.

320920924 is a deficient number, since it is larger than the sum of its proper divisors (240690700).

320920924 is a wasteful number, since it uses less digits than its factorization.

320920924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80230235 (or 80230233 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 320920924 is about 17914.2659352819. The cubic root of 320920924 is about 684.6458993543.

Adding to 320920924 its reverse (429029023), we get a palindrome (749949947).

The spelling of 320920924 in words is "three hundred twenty million, nine hundred twenty thousand, nine hundred twenty-four".