12900424 has 16 divisors (see below), whose sum is σ = 25240320. Its totient is φ = 6169680.

The previous prime is 12900403. The next prime is 12900443. The reversal of 12900424 is 42400921.

It is a junction number, because it is equal to n+sod(n) for n = 12900395 and 12900404.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34872 + ... + 35239.

It is an arithmetic number, because the mean of its divisors is an integer number (1577520).

Almost surely, 2^12900424 is an apocalyptic number.

It is an amenable number.

12900424 is a deficient number, since it is larger than the sum of its proper divisors (12339896).

12900424 is a wasteful number, since it uses less digits than its factorization.

12900424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70140 (or 70136 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 12900424 is about 3591.7160244095. The cubic root of 12900424 is about 234.5315793763.

The spelling of 12900424 in words is "twelve million, nine hundred thousand, four hundred twenty-four".