12930478 has 8 divisors (see below), whose sum is σ = 21159000. Its totient is φ = 5877480.

The previous prime is 12930473. The next prime is 12930479. The reversal of 12930478 is 87403921.

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

It is a super-2 number, since 2×12930478² = 334394522616968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12930473) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 293853 + ... + 293896.

It is an arithmetic number, because the mean of its divisors is an integer number (2644875).

Almost surely, 2^12930478 is an apocalyptic number.

12930478 is a deficient number, since it is larger than the sum of its proper divisors (8228522).

12930478 is a wasteful number, since it uses less digits than its factorization.

12930478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587762.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 12930478 is about 3595.8973845203. The cubic root of 12930478 is about 234.7135668176.

The spelling of 12930478 in words is "twelve million, nine hundred thirty thousand, four hundred seventy-eight".