22597072 has 10 divisors (see below), whose sum is σ = 43781858. Its totient is φ = 11298528.

The previous prime is 22597049. The next prime is 22597073. The reversal of 22597072 is 27079522.

It can be written as a sum of positive squares in only one way, i.e., 17774656 + 4822416 = 4216^2 + 2196^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22597073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 706143 + ... + 706174.

Almost surely, 2^22597072 is an apocalyptic number.

It is an amenable number.

22597072 is a deficient number, since it is larger than the sum of its proper divisors (21184786).

22597072 is a wasteful number, since it uses less digits than its factorization.

22597072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1412325 (or 1412319 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 22597072 is about 4753.6377649123. The cubic root of 22597072 is about 282.7162184203.

The spelling of 22597072 in words is "twenty-two million, five hundred ninety-seven thousand, seventy-two".