22159432 has 16 divisors (see below), whose sum is σ = 43993260. Its totient is φ = 10427904.

The previous prime is 22159427. The next prime is 22159433. The reversal of 22159432 is 23495122.

It can be written as a sum of positive squares in 2 ways, for example, as 22146436 + 12996 = 4706^2 + 114^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22159432.

It is not an unprimeable number, because it can be changed into a prime (22159433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81333 + ... + 81604.

Almost surely, 2^22159432 is an apocalyptic number.

It is an amenable number.

22159432 is a deficient number, since it is larger than the sum of its proper divisors (21833828).

22159432 is a wasteful number, since it uses less digits than its factorization.

22159432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162960 (or 162956 counting only the distinct ones).

The product of its digits is 4320, while the sum is 28.

The square root of 22159432 is about 4707.3805879703. The cubic root of 22159432 is about 280.8791753530.

The spelling of 22159432 in words is "twenty-two million, one hundred fifty-nine thousand, four hundred thirty-two".