13981682 has 64 divisors (see below), whose sum is σ = 27095040. Its totient is φ = 5313600.

The previous prime is 13981679. The next prime is 13981691. The reversal of 13981682 is 28618931.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 168413 + ... + 168495.

It is an arithmetic number, because the mean of its divisors is an integer number (423360).

Almost surely, 2^13981682 is an apocalyptic number.

13981682 is a deficient number, since it is larger than the sum of its proper divisors (13113358).

13981682 is a wasteful number, since it uses less digits than its factorization.

13981682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159.

The product of its digits is 20736, while the sum is 38.

The square root of 13981682 is about 3739.2087398272. The cubic root of 13981682 is about 240.9090639050.

The spelling of 13981682 in words is "thirteen million, nine hundred eighty-one thousand, six hundred eighty-two".