12949872 has 40 divisors (see below), whose sum is σ = 36028944. Its totient is φ = 3984384.

The previous prime is 12949841. The next prime is 12949877. The reversal of 12949872 is 27894921.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12949877) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 9753 + ... + 11000.

Almost surely, 2^12949872 is an apocalyptic number.

12949872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12949872 is an abundant number, since it is smaller than the sum of its proper divisors (23079072).

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

12949872 is a wasteful number, since it uses less digits than its factorization.

12949872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20777 (or 20771 counting only the distinct ones).

The product of its digits is 72576, while the sum is 42.

The square root of 12949872 is about 3598.5930584049. The cubic root of 12949872 is about 234.8308545928.

The spelling of 12949872 in words is "twelve million, nine hundred forty-nine thousand, eight hundred seventy-two".