12996400 has 30 divisors (see below), whose sum is σ = 31224812. Its totient is φ = 5198400.

The previous prime is 12996391. The next prime is 12996413. The reversal of 12996400 is 469921.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15846 + ... + 16645.

Almost surely, 2^12996400 is an apocalyptic number.

12996400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12996400 is an abundant number, since it is smaller than the sum of its proper divisors (18228412).

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

12996400 is a wasteful number, since it uses less digits than its factorization.

12996400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32509 (or 32498 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 12996400 is about 3605.0520107205. The cubic root of 12996400 is about 235.1117621404. Note that the first 3 decimals are identical.

It can be divided in two parts, 12996 and 400, that multiplied together give a square (5198400 = 2280²).

The spelling of 12996400 in words is "twelve million, nine hundred ninety-six thousand, four hundred".