13942816 has 24 divisors (see below), whose sum is σ = 27971244. Its totient is φ = 6839040.

The previous prime is 13942811. The next prime is 13942861. The reversal of 13942816 is 61824931.

It can be written as a sum of positive squares in 2 ways, for example, as 11971600 + 1971216 = 3460^2 + 1404^2 .

It is not an unprimeable number, because it can be changed into a prime (13942811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2415 + ... + 5806.

Almost surely, 2^13942816 is an apocalyptic number.

13942816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13942816 is an abundant number, since it is smaller than the sum of its proper divisors (14028428).

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

13942816 is an equidigital number, since it uses as much as digits as its factorization.

13942816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8284 (or 8276 counting only the distinct ones).

The product of its digits is 10368, while the sum is 34.

The square root of 13942816 is about 3734.0080342709. The cubic root of 13942816 is about 240.6856320138.

The spelling of 13942816 in words is "thirteen million, nine hundred forty-two thousand, eight hundred sixteen".