22156732 has 12 divisors (see below), whose sum is σ = 41757016. Its totient is φ = 10226160.

The previous prime is 22156727. The next prime is 22156759. The reversal of 22156732 is 23765122.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 22156732.

It is a congruent number.

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, 212994 + ... + 213097.

Almost surely, 2^22156732 is an apocalyptic number.

It is an amenable number.

22156732 is a deficient number, since it is larger than the sum of its proper divisors (19600284).

22156732 is a wasteful number, since it uses less digits than its factorization.

22156732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426108 (or 426106 counting only the distinct ones).

The product of its digits is 5040, while the sum is 28.

The square root of 22156732 is about 4707.0937955388. The cubic root of 22156732 is about 280.8677670495.

It can be divided in two parts, 221 and 56732, that added together give a triangular number (56953 = T₃₃₇).

The spelling of 22156732 in words is "twenty-two million, one hundred fifty-six thousand, seven hundred thirty-two".