13945972 has 12 divisors (see below), whose sum is σ = 24514560. Its totient is φ = 6941816.

The previous prime is 13945969. The next prime is 13945973. The reversal of 13945972 is 27954931.

13945972 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13945973) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6772 + ... + 8587.

It is an arithmetic number, because the mean of its divisors is an integer number (2042880).

Almost surely, 2^13945972 is an apocalyptic number.

It is an amenable number.

13945972 is a deficient number, since it is larger than the sum of its proper divisors (10568588).

13945972 is a wasteful number, since it uses less digits than its factorization.

13945972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15590 (or 15588 counting only the distinct ones).

The product of its digits is 68040, while the sum is 40.

The square root of 13945972 is about 3734.4306125566. The cubic root of 13945972 is about 240.7037906256.

The spelling of 13945972 in words is "thirteen million, nine hundred forty-five thousand, nine hundred seventy-two".