22977216 has 56 divisors (see below), whose sum is σ = 67553840. Its totient is φ = 7658496.

The previous prime is 22977203. The next prime is 22977223. The reversal of 22977216 is 61277922.

It is a super-2 number, since 2×22977216² = 1055904910221312, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 4921 + ... + 8376.

Almost surely, 2^22977216 is an apocalyptic number.

It is an amenable number.

22977216 is an abundant number, since it is smaller than the sum of its proper divisors (44576624).

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

22977216 is a wasteful number, since it uses less digits than its factorization.

22977216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13318 (or 13302 counting only the distinct ones).

The product of its digits is 21168, while the sum is 36.

The square root of 22977216 is about 4793.4555385442. The cubic root of 22977216 is about 284.2927616483.

The spelling of 22977216 in words is "twenty-two million, nine hundred seventy-seven thousand, two hundred sixteen".