22966720 has 56 divisors (see below), whose sum is σ = 62508384. Its totient is φ = 7873536.

The previous prime is 22966703. The next prime is 22966721. The reversal of 22966720 is 2766922.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22966721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2887 + ... + 7366.

Almost surely, 2^22966720 is an apocalyptic number.

22966720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22966720 is an abundant number, since it is smaller than the sum of its proper divisors (39541664).

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

22966720 is a wasteful number, since it uses less digits than its factorization.

22966720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10277 (or 10267 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 22966720 is about 4792.3605874350. The cubic root of 22966720 is about 284.2494667122.

The spelling of 22966720 in words is "twenty-two million, nine hundred sixty-six thousand, seven hundred twenty".