22163264 has 28 divisors (see below), whose sum is σ = 45403008. Its totient is φ = 10723200.

The previous prime is 22163263. The next prime is 22163299. The reversal of 22163264 is 46236122.

It is a super-2 number, since 2×22163264² = 982420542267392, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22163261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3602 + ... + 7569.

It is an arithmetic number, because the mean of its divisors is an integer number (1621536).

Almost surely, 2^22163264 is an apocalyptic number.

It is an amenable number.

22163264 is an abundant number, since it is smaller than the sum of its proper divisors (23239744).

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

22163264 is a wasteful number, since it uses less digits than its factorization.

22163264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11214 (or 11204 counting only the distinct ones).

The product of its digits is 3456, while the sum is 26.

The square root of 22163264 is about 4707.7875907904. The cubic root of 22163264 is about 280.8953651026.

Adding to 22163264 its reverse (46236122), we get a palindrome (68399386).

The spelling of 22163264 in words is "twenty-two million, one hundred sixty-three thousand, two hundred sixty-four".