13972444 has 24 divisors (see below), whose sum is σ = 25393536. Its totient is φ = 6720000.

The previous prime is 13972433. The next prime is 13972447. The reversal of 13972444 is 44427931.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13972447) 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, 34644 + ... + 35044.

It is an arithmetic number, because the mean of its divisors is an integer number (1058064).

Almost surely, 2^13972444 is an apocalyptic number.

It is an amenable number.

13972444 is a deficient number, since it is larger than the sum of its proper divisors (11421092).

13972444 is a wasteful number, since it uses less digits than its factorization.

13972444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717 (or 715 counting only the distinct ones).

The product of its digits is 24192, while the sum is 34.

The square root of 13972444 is about 3737.9732476303. The cubic root of 13972444 is about 240.8559942704.

The spelling of 13972444 in words is "thirteen million, nine hundred seventy-two thousand, four hundred forty-four".