22163432 has 8 divisors (see below), whose sum is σ = 41556450. Its totient is φ = 11081712.

The previous prime is 22163417. The next prime is 22163459. The reversal of 22163432 is 23436122.

It can be written as a sum of positive squares in only one way, i.e., 21771556 + 391876 = 4666^2 + 626^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 22163398 and 22163407.

It is an unprimeable number.

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, 1385207 + ... + 1385222.

Almost surely, 2^22163432 is an apocalyptic number.

It is an amenable number.

22163432 is a deficient number, since it is larger than the sum of its proper divisors (19393018).

22163432 is a wasteful number, since it uses less digits than its factorization.

22163432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2770435 (or 2770431 counting only the distinct ones).

The product of its digits is 1728, while the sum is 23.

The square root of 22163432 is about 4707.8054335327. The cubic root of 22163432 is about 280.8960748401.

Adding to 22163432 its reverse (23436122), we get a palindrome (45599554).

The spelling of 22163432 in words is "twenty-two million, one hundred sixty-three thousand, four hundred thirty-two".