13680942 has 16 divisors (see below), whose sum is σ = 29849472. Its totient is φ = 4145720.

The previous prime is 13680941. The next prime is 13680949. The reversal of 13680942 is 24908631.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13680941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103578 + ... + 103709.

It is an arithmetic number, because the mean of its divisors is an integer number (1865592).

Almost surely, 2^13680942 is an apocalyptic number.

13680942 is an abundant number, since it is smaller than the sum of its proper divisors (16168530).

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

13680942 is a wasteful number, since it uses less digits than its factorization.

13680942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207303.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 13680942 is about 3698.7757434048. The cubic root of 13680942 is about 239.1692457375.

The spelling of 13680942 in words is "thirteen million, six hundred eighty thousand, nine hundred forty-two".