22157152 has 24 divisors (see below), whose sum is σ = 44340912. Its totient is φ = 10896000.

The previous prime is 22157143. The next prime is 22157167. The reversal of 22157152 is 25175122.

It is a super-2 number, since 2×22157152² = 981878769502208, which contains 22 as substring.

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, 3724 + ... + 7627.

It is an arithmetic number, because the mean of its divisors is an integer number (1847538).

Almost surely, 2^22157152 is an apocalyptic number.

It is an amenable number.

22157152 is an abundant number, since it is smaller than the sum of its proper divisors (22183760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22157152 is a wasteful number, since it uses less digits than its factorization.

22157152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11422 (or 11414 counting only the distinct ones).

The product of its digits is 1400, while the sum is 25.

The square root of 22157152 is about 4707.1384088425. The cubic root of 22157152 is about 280.8695417354.

The spelling of 22157152 in words is "twenty-two million, one hundred fifty-seven thousand, one hundred fifty-two".