22506874 has 16 divisors (see below), whose sum is σ = 37045512. Its totient is φ = 10191168.

The previous prime is 22506859. The next prime is 22506881. The reversal of 22506874 is 47860522.

It can be written as a sum of positive squares in 4 ways, for example, as 12552849 + 9954025 = 3543^2 + 3155^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6789 + ... + 9544.

Almost surely, 2^22506874 is an apocalyptic number.

22506874 is a deficient number, since it is larger than the sum of its proper divisors (14538638).

22506874 is a wasteful number, since it uses less digits than its factorization.

22506874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16401.

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 22506874 is about 4744.1410181402. The cubic root of 22506874 is about 282.3395554333.

The spelling of 22506874 in words is "twenty-two million, five hundred six thousand, eight hundred seventy-four".