13730656 has 12 divisors (see below), whose sum is σ = 27032292. Its totient is φ = 6865312.

The previous prime is 13730623. The next prime is 13730671. The reversal of 13730656 is 65603731.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214510 + ... + 214573.

It is an arithmetic number, because the mean of its divisors is an integer number (2252691).

Almost surely, 2^13730656 is an apocalyptic number.

13730656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13730656 is a deficient number, since it is larger than the sum of its proper divisors (13301636).

13730656 is an equidigital number, since it uses as much as digits as its factorization.

13730656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429093 (or 429085 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 31.

The square root of 13730656 is about 3705.4899810956. The cubic root of 13730656 is about 239.4585943998.

The spelling of 13730656 in words is "thirteen million, seven hundred thirty thousand, six hundred fifty-six".