22447136 has 12 divisors (see below), whose sum is σ = 44192862. Its totient is φ = 11223552.

The previous prime is 22447129. The next prime is 22447169. The reversal of 22447136 is 63174422.

It can be written as a sum of positive squares in only one way, i.e., 20757136 + 1690000 = 4556^2 + 1300^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22447099 and 22447108.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 350705 + ... + 350768.

Almost surely, 2^22447136 is an apocalyptic number.

It is an amenable number.

22447136 is a deficient number, since it is larger than the sum of its proper divisors (21745726).

22447136 is an equidigital number, since it uses as much as digits as its factorization.

22447136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701483 (or 701475 counting only the distinct ones).

The product of its digits is 8064, while the sum is 29.

The square root of 22447136 is about 4737.8408584502. The cubic root of 22447136 is about 282.0895378204.

The spelling of 22447136 in words is "twenty-two million, four hundred forty-seven thousand, one hundred thirty-six".