22372722 has 12 divisors (see below), whose sum is σ = 48474270. Its totient is φ = 7457568.

The previous prime is 22372703. The next prime is 22372723. The reversal of 22372722 is 22727322.

It can be written as a sum of positive squares in only one way, i.e., 14130081 + 8242641 = 3759^2 + 2871^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22372723) 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, 621447 + ... + 621482.

Almost surely, 2^22372722 is an apocalyptic number.

22372722 is an abundant number, since it is smaller than the sum of its proper divisors (26101548).

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

22372722 is a wasteful number, since it uses less digits than its factorization.

22372722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1242937 (or 1242934 counting only the distinct ones).

The product of its digits is 4704, while the sum is 27.

The square root of 22372722 is about 4729.9811838949. The cubic root of 22372722 is about 281.7774764846. Note that the first 3 decimals are identical.

The spelling of 22372722 in words is "twenty-two million, three hundred seventy-two thousand, seven hundred twenty-two".