13039740 has 144 divisors (see below), whose sum is σ = 46126080. Its totient is φ = 2920320.

The previous prime is 13039721. The next prime is 13039751. The reversal of 13039740 is 4793031.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 99475 + ... + 99605.

It is an arithmetic number, because the mean of its divisors is an integer number (320320).

Almost surely, 2^13039740 is an apocalyptic number.

13039740 is a gapful number since it is divisible by the number (10) 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 13039740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23063040).

13039740 is an abundant number, since it is smaller than the sum of its proper divisors (33086340).

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

13039740 is a wasteful number, since it uses less digits than its factorization.

13039740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232 (or 227 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 13039740 is about 3611.0580167037. The cubic root of 13039740 is about 235.3728200203.

The spelling of 13039740 in words is "thirteen million, thirty-nine thousand, seven hundred forty".