13961994 has 16 divisors (see below), whose sum is σ = 28126560. Its totient is φ = 4620240.

The previous prime is 13961993. The next prime is 13962023. The reversal of 13961994 is 49916931.

It is not an unprimeable number, because it can be changed into a prime (13961993) 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, 7537 + ... + 9204.

It is an arithmetic number, because the mean of its divisors is an integer number (1757910).

Almost surely, 2^13961994 is an apocalyptic number.

13961994 is an abundant number, since it is smaller than the sum of its proper divisors (14164566).

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

13961994 is a wasteful number, since it uses less digits than its factorization.

13961994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16885.

The product of its digits is 52488, while the sum is 42.

The square root of 13961994 is about 3736.5751698581. The cubic root of 13961994 is about 240.7959338430.

The spelling of 13961994 in words is "thirteen million, nine hundred sixty-one thousand, nine hundred ninety-four".