22708872 has 48 divisors (see below), whose sum is σ = 65124540. Its totient is φ = 7123968.

The previous prime is 22708871. The next prime is 22708877. The reversal of 22708872 is 27880722.

It can be written as a sum of positive squares in 2 ways, for example, as 22410756 + 298116 = 4734^2 + 546^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (22708871) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8053 + ... + 10500.

Almost surely, 2^22708872 is an apocalyptic number.

It is an amenable number.

22708872 is an abundant number, since it is smaller than the sum of its proper divisors (42415668).

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

22708872 is a wasteful number, since it uses less digits than its factorization.

22708872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18582 (or 18575 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 36.

The square root of 22708872 is about 4765.3826708880. The cubic root of 22708872 is about 283.1817018724.

The spelling of 22708872 in words is "twenty-two million, seven hundred eight thousand, eight hundred seventy-two".