22977980 has 24 divisors (see below), whose sum is σ = 48444480. Its totient is φ = 9154880.

The previous prime is 22977959. The next prime is 22978003. The reversal of 22977980 is 8977922.

It is a congruent number.

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, 3245 + ... + 7515.

It is an arithmetic number, because the mean of its divisors is an integer number (2018520).

Almost surely, 2^22977980 is an apocalyptic number.

22977980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22977980 is an abundant number, since it is smaller than the sum of its proper divisors (25466500).

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

22977980 is a wasteful number, since it uses less digits than its factorization.

22977980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4549 (or 4547 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 44.

The square root of 22977980 is about 4793.5352298695. The cubic root of 22977980 is about 284.2959125560.

The spelling of 22977980 in words is "twenty-two million, nine hundred seventy-seven thousand, nine hundred eighty".