22897320 has 32 divisors (see below), whose sum is σ = 68692320. Its totient is φ = 6105920.

The previous prime is 22897309. The next prime is 22897361. The reversal of 22897320 is 2379822.

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, 95286 + ... + 95525.

It is an arithmetic number, because the mean of its divisors is an integer number (2146635).

Almost surely, 2^22897320 is an apocalyptic number.

22897320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22897320 is an abundant number, since it is smaller than the sum of its proper divisors (45795000).

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

22897320 is a wasteful number, since it uses less digits than its factorization.

22897320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190825 (or 190821 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 22897320 is about 4785.1144186947. The cubic root of 22897320 is about 283.9628662683.

The spelling of 22897320 in words is "twenty-two million, eight hundred ninety-seven thousand, three hundred twenty".