22157932 has 12 divisors (see below), whose sum is σ = 40027456. Its totient is φ = 10721520.

The previous prime is 22157923. The next prime is 22157957. The reversal of 22157932 is 23975122.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a junction number, because it is equal to n+sod(n) for n = 22157894 and 22157903.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 89223 + ... + 89470.

Almost surely, 2^22157932 is an apocalyptic number.

It is an amenable number.

22157932 is a deficient number, since it is larger than the sum of its proper divisors (17869524).

22157932 is a wasteful number, since it uses less digits than its factorization.

22157932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178728 (or 178726 counting only the distinct ones).

The product of its digits is 7560, while the sum is 31.

The square root of 22157932 is about 4707.2212609989. The cubic root of 22157932 is about 280.8728375210.

The spelling of 22157932 in words is "twenty-two million, one hundred fifty-seven thousand, nine hundred thirty-two".