13926478 has 16 divisors (see below), whose sum is σ = 21461760. Its totient is φ = 6775096.

The previous prime is 13926463. The next prime is 13926481. The reversal of 13926478 is 87462931.

It is a self number, because there is not a number n which added to its sum of digits gives 13926478.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12075 + ... + 13177.

It is an arithmetic number, because the mean of its divisors is an integer number (1341360).

Almost surely, 2^13926478 is an apocalyptic number.

13926478 is a deficient number, since it is larger than the sum of its proper divisors (7535282).

13926478 is a wasteful number, since it uses less digits than its factorization.

13926478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1271.

The product of its digits is 72576, while the sum is 40.

The square root of 13926478 is about 3731.8196633814. The cubic root of 13926478 is about 240.5915845654.

The spelling of 13926478 in words is "thirteen million, nine hundred twenty-six thousand, four hundred seventy-eight".