12976240 has 40 divisors (see below), whose sum is σ = 31761360. Its totient is φ = 4916736.

The previous prime is 12976237. The next prime is 12976273. The reversal of 12976240 is 4267921.

It is a tau number, because it is divible by the number of its divisors (40).

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2749 + ... + 5788.

It is an arithmetic number, because the mean of its divisors is an integer number (794034).

Almost surely, 2^12976240 is an apocalyptic number.

12976240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12976240 is an abundant number, since it is smaller than the sum of its proper divisors (18785120).

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

12976240 is a wasteful number, since it uses less digits than its factorization.

12976240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8569 (or 8563 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 12976240 is about 3602.2548493964. The cubic root of 12976240 is about 234.9901308667.

The spelling of 12976240 in words is "twelve million, nine hundred seventy-six thousand, two hundred forty".