13938744 has 32 divisors (see below), whose sum is σ = 35421840. Its totient is φ = 4569600.

The previous prime is 13938739. The next prime is 13938779. The reversal of 13938744 is 44783931.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3297 + ... + 6224.

Almost surely, 2^13938744 is an apocalyptic number.

It is an amenable number.

13938744 is an abundant number, since it is smaller than the sum of its proper divisors (21483096).

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

13938744 is a wasteful number, since it uses less digits than its factorization.

13938744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9591 (or 9587 counting only the distinct ones).

The product of its digits is 72576, while the sum is 39.

The square root of 13938744 is about 3733.4627358526. The cubic root of 13938744 is about 240.6621989828.

It can be divided in two parts, 139 and 38744, that added together give a palindrome (38883).

The spelling of 13938744 in words is "thirteen million, nine hundred thirty-eight thousand, seven hundred forty-four".