22397532 has 12 divisors (see below), whose sum is σ = 52260936. Its totient is φ = 7465840.

The previous prime is 22397519. The next prime is 22397533. The reversal of 22397532 is 23579322.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 22397493 and 22397502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22397533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 933219 + ... + 933242.

It is an arithmetic number, because the mean of its divisors is an integer number (4355078).

Almost surely, 2^22397532 is an apocalyptic number.

It is an amenable number.

22397532 is an abundant number, since it is smaller than the sum of its proper divisors (29863404).

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

22397532 is a wasteful number, since it uses less digits than its factorization.

22397532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1866468 (or 1866466 counting only the distinct ones).

The product of its digits is 22680, while the sum is 33.

The square root of 22397532 is about 4732.6030892100. The cubic root of 22397532 is about 281.8815960849.

The spelling of 22397532 in words is "twenty-two million, three hundred ninety-seven thousand, five hundred thirty-two".