22531468 has 12 divisors (see below), whose sum is σ = 40392072. Its totient is φ = 10990880.

The previous prime is 22531433. The next prime is 22531489. The reversal of 22531468 is 86413522.

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, 68530 + ... + 68857.

It is an arithmetic number, because the mean of its divisors is an integer number (3366006).

Almost surely, 2^22531468 is an apocalyptic number.

It is an amenable number.

22531468 is a deficient number, since it is larger than the sum of its proper divisors (17860604).

22531468 is a wasteful number, since it uses less digits than its factorization.

22531468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137432 (or 137430 counting only the distinct ones).

The product of its digits is 11520, while the sum is 31.

The square root of 22531468 is about 4746.7323497328. The cubic root of 22531468 is about 282.4423585636.

It can be divided in two parts, 2253 and 1468, that added together give a square (3721 = 61²).

The spelling of 22531468 in words is "twenty-two million, five hundred thirty-one thousand, four hundred sixty-eight".