12413978 has 24 divisors (see below), whose sum is σ = 20333268. Its totient is φ = 5662592.

The previous prime is 12413959. The next prime is 12413983. The reversal of 12413978 is 87931421.

It can be written as a sum of positive squares in 2 ways, for example, as 11580409 + 833569 = 3403^2 + 913^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 149525 + ... + 149607.

Almost surely, 2^12413978 is an apocalyptic number.

12413978 is a deficient number, since it is larger than the sum of its proper divisors (7919290).

12413978 is an equidigital number, since it uses as much as digits as its factorization.

12413978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238 (or 155 counting only the distinct ones).

The product of its digits is 12096, while the sum is 35.

The square root of 12413978 is about 3523.3475559473. The cubic root of 12413978 is about 231.5458440993.

The spelling of 12413978 in words is "twelve million, four hundred thirteen thousand, nine hundred seventy-eight".