13739648 has 64 divisors (see below), whose sum is σ = 30844800. Its totient is φ = 6048768.

The previous prime is 13739639. The next prime is 13739659. The reversal of 13739648 is 84693731.

It is a tau number, because it is divible by the number of its divisors (64).

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, 38093 + ... + 38451.

It is an arithmetic number, because the mean of its divisors is an integer number (481950).

Almost surely, 2^13739648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13739648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15422400).

13739648 is an abundant number, since it is smaller than the sum of its proper divisors (17105152).

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

13739648 is a wasteful number, since it uses less digits than its factorization.

13739648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409 (or 397 counting only the distinct ones).

The product of its digits is 108864, while the sum is 41.

The square root of 13739648 is about 3706.7031173268. The cubic root of 13739648 is about 239.5108556031.

The spelling of 13739648 in words is "thirteen million, seven hundred thirty-nine thousand, six hundred forty-eight".