12889264 has 20 divisors (see below), whose sum is σ = 26442504. Its totient is φ = 6065408.

The previous prime is 12889249. The next prime is 12889267. The reversal of 12889264 is 46298821.

It is a super-2 number, since 2×12889264² = 332266252923392, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12889267) 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, 23422 + ... + 23965.

Almost surely, 2^12889264 is an apocalyptic number.

It is an amenable number.

12889264 is an abundant number, since it is smaller than the sum of its proper divisors (13553240).

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

12889264 is a wasteful number, since it uses less digits than its factorization.

12889264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47412 (or 47406 counting only the distinct ones).

The product of its digits is 55296, while the sum is 40.

The square root of 12889264 is about 3590.1621133314. The cubic root of 12889264 is about 234.4639297254.

The spelling of 12889264 in words is "twelve million, eight hundred eighty-nine thousand, two hundred sixty-four".