22697572 has 12 divisors (see below), whose sum is σ = 39927916. Its totient is φ = 11289600.

The previous prime is 22697561. The next prime is 22697603. The reversal of 22697572 is 27579622.

It can be written as a sum of positive squares in 2 ways, for example, as 3896676 + 18800896 = 1974^2 + 4336^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13929 + ... + 15472.

Almost surely, 2^22697572 is an apocalyptic number.

It is an amenable number.

22697572 is a deficient number, since it is larger than the sum of its proper divisors (17230344).

22697572 is a wasteful number, since it uses less digits than its factorization.

22697572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29598 (or 29596 counting only the distinct ones).

The product of its digits is 105840, while the sum is 40.

The square root of 22697572 is about 4764.1968892983. The cubic root of 22697572 is about 283.1347234030.

The spelling of 22697572 in words is "twenty-two million, six hundred ninety-seven thousand, five hundred seventy-two".