13739544 has 160 divisors (see below), whose sum is σ = 47567520. Its totient is φ = 3608064.

The previous prime is 13739521. The next prime is 13739563. The reversal of 13739544 is 44593731.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 13739499 and 13739508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 58852 + ... + 59084.

It is an arithmetic number, because the mean of its divisors is an integer number (297297).

Almost surely, 2^13739544 is an apocalyptic number.

13739544 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13739544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23783760).

13739544 is an abundant number, since it is smaller than the sum of its proper divisors (33827976).

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

13739544 is a wasteful number, since it uses less digits than its factorization.

13739544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271 (or 258 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

The square root of 13739544 is about 3706.6890886612. The cubic root of 13739544 is about 239.5102512890.

The spelling of 13739544 in words is "thirteen million, seven hundred thirty-nine thousand, five hundred forty-four".