12974378 has 16 divisors (see below), whose sum is σ = 20559840. Its totient is φ = 6123600.

The previous prime is 12974341. The next prime is 12974387. The reversal of 12974378 is 87347921.

It is a Curzon number.

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 7 ways as a sum of consecutive naturals, for example, 15593 + ... + 16403.

It is an arithmetic number, because the mean of its divisors is an integer number (1284990).

Almost surely, 2^12974378 is an apocalyptic number.

12974378 is a deficient number, since it is larger than the sum of its proper divisors (7585462).

12974378 is a wasteful number, since it uses less digits than its factorization.

12974378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1253.

The product of its digits is 84672, while the sum is 41.

The square root of 12974378 is about 3601.9963908921. The cubic root of 12974378 is about 234.9788905137.

The spelling of 12974378 in words is "twelve million, nine hundred seventy-four thousand, three hundred seventy-eight".