13956816 has 20 divisors (see below), whose sum is σ = 36055232. Its totient is φ = 4652256.

The previous prime is 13956799. The next prime is 13956823. The reversal of 13956816 is 61865931.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 145336 + ... + 145431.

Almost surely, 2^13956816 is an apocalyptic number.

13956816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13956816 is an abundant number, since it is smaller than the sum of its proper divisors (22098416).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13956816 is a wasteful number, since it uses less digits than its factorization.

13956816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290778 (or 290772 counting only the distinct ones).

The product of its digits is 38880, while the sum is 39.

The square root of 13956816 is about 3735.8822251243. The cubic root of 13956816 is about 240.7661626534.

The spelling of 13956816 in words is "thirteen million, nine hundred fifty-six thousand, eight hundred sixteen".