22665432 has 16 divisors (see below), whose sum is σ = 56663640. Its totient is φ = 7555136.

The previous prime is 22665431. The next prime is 22665439. The reversal of 22665432 is 23456622.

It is a self number, because there is not a number n which added to its sum of digits gives 22665432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22665431) 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 in 3 ways as a sum of consecutive naturals, for example, 472173 + ... + 472220.

Almost surely, 2^22665432 is an apocalyptic number.

It is an amenable number.

22665432 is an abundant number, since it is smaller than the sum of its proper divisors (33998208).

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

22665432 is a wasteful number, since it uses less digits than its factorization.

22665432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 944402 (or 944398 counting only the distinct ones).

The product of its digits is 17280, while the sum is 30.

The square root of 22665432 is about 4760.8226179937. The cubic root of 22665432 is about 283.0010196952.

The spelling of 22665432 in words is "twenty-two million, six hundred sixty-five thousand, four hundred thirty-two".