12899264 has 28 divisors (see below), whose sum is σ = 29254704. Its totient is φ = 5528064.

The previous prime is 12899231. The next prime is 12899267. The reversal of 12899264 is 46299821.

It is a tau number, because it is divible by the number of its divisors (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12899267) 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, 13949 + ... + 14844.

Almost surely, 2^12899264 is an apocalyptic number.

12899264 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12899264 is an abundant number, since it is smaller than the sum of its proper divisors (16355440).

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

12899264 is an equidigital number, since it uses as much as digits as its factorization.

12899264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28812 (or 28802 counting only the distinct ones).

The product of its digits is 62208, while the sum is 41.

The square root of 12899264 is about 3591.5545380796. The cubic root of 12899264 is about 234.5245495095.

The spelling of 12899264 in words is "twelve million, eight hundred ninety-nine thousand, two hundred sixty-four".