13739964 has 48 divisors (see below), whose sum is σ = 38572800. Its totient is φ = 3718656.

The previous prime is 13739963. The next prime is 13739981. The reversal of 13739964 is 46993731.

It is a super-2 number, since 2×13739964² = 377573221442592, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13739963) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2709 + ... + 5900.

It is an arithmetic number, because the mean of its divisors is an integer number (803600).

Almost surely, 2^13739964 is an apocalyptic number.

13739964 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13739964 is an abundant number, since it is smaller than the sum of its proper divisors (24832836).

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

13739964 is a wasteful number, since it uses less digits than its factorization.

13739964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8642 (or 8640 counting only the distinct ones).

The product of its digits is 122472, while the sum is 42.

The square root of 13739964 is about 3706.7457425618. The cubic root of 13739964 is about 239.5126917698.

The spelling of 13739964 in words is "thirteen million, seven hundred thirty-nine thousand, nine hundred sixty-four".