22996720 has 40 divisors (see below), whose sum is σ = 53719776. Its totient is φ = 9155328.

The previous prime is 22996709. The next prime is 22996723. The reversal of 22996720 is 2769922.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 22996720.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22996723) 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, 20494 + ... + 21586.

Almost surely, 2^22996720 is an apocalyptic number.

22996720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22996720 is an abundant number, since it is smaller than the sum of its proper divisors (30723056).

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

22996720 is a wasteful number, since it uses less digits than its factorization.

22996720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1369 (or 1363 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 22996720 is about 4795.4895474810. The cubic root of 22996720 is about 284.3731786705.

It can be divided in two parts, 22996 and 720, that added together give a square (23716 = 154²).

The spelling of 22996720 in words is "twenty-two million, nine hundred ninety-six thousand, seven hundred twenty".