13901994 has 12 divisors (see below), whose sum is σ = 30121026. Its totient is φ = 4633992.

The previous prime is 13901957. The next prime is 13901999. The reversal of 13901994 is 49910931.

It can be written as a sum of positive squares in only one way, i.e., 13593969 + 308025 = 3687^2 + 555^2 .

It is not an unprimeable number, because it can be changed into a prime (13901999) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 386149 + ... + 386184.

Almost surely, 2^13901994 is an apocalyptic number.

13901994 is an abundant number, since it is smaller than the sum of its proper divisors (16219032).

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

13901994 is a wasteful number, since it uses less digits than its factorization.

13901994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 772341 (or 772338 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 36.

The square root of 13901994 is about 3728.5377830994. The cubic root of 13901994 is about 240.4505079815.

The spelling of 13901994 in words is "thirteen million, nine hundred one thousand, nine hundred ninety-four".