12478474 has 8 divisors (see below), whose sum is σ = 18974340. Its totient is φ = 6153696.

The previous prime is 12478457. The next prime is 12478483. The reversal of 12478474 is 47487421.

It can be written as a sum of positive squares in 2 ways, for example, as 11390625 + 1087849 = 3375^2 + 1043^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 42589 + ... + 42880.

Almost surely, 2^12478474 is an apocalyptic number.

12478474 is a deficient number, since it is larger than the sum of its proper divisors (6495866).

12478474 is an equidigital number, since it uses as much as digits as its factorization.

12478474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85544.

The product of its digits is 50176, while the sum is 37.

The square root of 12478474 is about 3532.4883580841. The cubic root of 12478474 is about 231.9461453474.

The spelling of 12478474 in words is "twelve million, four hundred seventy-eight thousand, four hundred seventy-four".