13943216 has 20 divisors (see below), whose sum is σ = 30874512. Its totient is φ = 5975616.

The previous prime is 13943177. The next prime is 13943227. The reversal of 13943216 is 61234931.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62135 + ... + 62358.

Almost surely, 2^13943216 is an apocalyptic number.

13943216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13943216 is an abundant number, since it is smaller than the sum of its proper divisors (16931296).

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

13943216 is a wasteful number, since it uses less digits than its factorization.

13943216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124508 (or 124502 counting only the distinct ones).

The product of its digits is 3888, while the sum is 29.

The square root of 13943216 is about 3734.0615956355. The cubic root of 13943216 is about 240.6879336371.

The spelling of 13943216 in words is "thirteen million, nine hundred forty-three thousand, two hundred sixteen".