22977644 has 18 divisors (see below), whose sum is σ = 42039060. Its totient is φ = 10988296.

The previous prime is 22977641. The next prime is 22977653. The reversal of 22977644 is 44677922.

It is not an unprimeable number, because it can be changed into a prime (22977641) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3314 + ... + 7545.

Almost surely, 2^22977644 is an apocalyptic number.

It is an amenable number.

22977644 is a deficient number, since it is larger than the sum of its proper divisors (19061416).

22977644 is a wasteful number, since it uses less digits than its factorization.

22977644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10909 (or 10884 counting only the distinct ones).

The product of its digits is 169344, while the sum is 41.

The square root of 22977644 is about 4793.5001825389. The cubic root of 22977644 is about 284.2945268251.

The spelling of 22977644 in words is "twenty-two million, nine hundred seventy-seven thousand, six hundred forty-four".