22715432 has 8 divisors (see below), whose sum is σ = 42591450. Its totient is φ = 11357712.

The previous prime is 22715401. The next prime is 22715437. The reversal of 22715432 is 23451722.

It can be written as a sum of positive squares in only one way, i.e., 22714756 + 676 = 4766^2 + 26^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (22715437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1419707 + ... + 1419722.

Almost surely, 2^22715432 is an apocalyptic number.

It is an amenable number.

22715432 is a deficient number, since it is larger than the sum of its proper divisors (19876018).

22715432 is a wasteful number, since it uses less digits than its factorization.

22715432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2839435 (or 2839431 counting only the distinct ones).

The product of its digits is 3360, while the sum is 26.

The square root of 22715432 is about 4766.0709184820. The cubic root of 22715432 is about 283.2089671796.

The spelling of 22715432 in words is "twenty-two million, seven hundred fifteen thousand, four hundred thirty-two".