22860720 has 60 divisors (see below), whose sum is σ = 76776336. Its totient is φ = 6096000.

The previous prime is 22860703. The next prime is 22860727. The reversal of 22860720 is 2706822.

It is a tau number, because it is divible by the number of its divisors (60).

It is a super-2 number, since 2×22860720² = 1045225037836800, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (22860727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15156 + ... + 16595.

Almost surely, 2^22860720 is an apocalyptic number.

22860720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22860720 is an abundant number, since it is smaller than the sum of its proper divisors (53915616).

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

22860720 is a wasteful number, since it uses less digits than its factorization.

22860720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31770 (or 31761 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 22860720 is about 4781.2885292565. The cubic root of 22860720 is about 283.8114863488.

The spelling of 22860720 in words is "twenty-two million, eight hundred sixty thousand, seven hundred twenty".