22137832 has 8 divisors (see below), whose sum is σ = 41508450. Its totient is φ = 11068912.

The previous prime is 22137781. The next prime is 22137833. The reversal of 22137832 is 23873122.

It can be written as a sum of positive squares in only one way, i.e., 19660356 + 2477476 = 4434^2 + 1574^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 22137832.

It is not an unprimeable number, because it can be changed into a prime (22137833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1383607 + ... + 1383622.

Almost surely, 2^22137832 is an apocalyptic number.

It is an amenable number.

22137832 is a deficient number, since it is larger than the sum of its proper divisors (19370618).

22137832 is a wasteful number, since it uses less digits than its factorization.

22137832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2767235 (or 2767231 counting only the distinct ones).

The product of its digits is 4032, while the sum is 28.

The square root of 22137832 is about 4705.0857590484. The cubic root of 22137832 is about 280.7878829629.

The spelling of 22137832 in words is "twenty-two million, one hundred thirty-seven thousand, eight hundred thirty-two".