22157792 has 12 divisors (see below), whose sum is σ = 43623216. Its totient is φ = 11078880.

The previous prime is 22157789. The next prime is 22157797. The reversal of 22157792 is 29775122.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22157797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 346184 + ... + 346247.

It is an arithmetic number, because the mean of its divisors is an integer number (3635268).

Almost surely, 2^22157792 is an apocalyptic number.

It is an amenable number.

22157792 is a deficient number, since it is larger than the sum of its proper divisors (21465424).

22157792 is an equidigital number, since it uses as much as digits as its factorization.

22157792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 692441 (or 692433 counting only the distinct ones).

The product of its digits is 17640, while the sum is 35.

The square root of 22157792 is about 4707.2063902064. The cubic root of 22157792 is about 280.8722459755.

The spelling of 22157792 in words is "twenty-two million, one hundred fifty-seven thousand, seven hundred ninety-two".