13712740 has 12 divisors (see below), whose sum is σ = 28796796. Its totient is φ = 5485088.

The previous prime is 13712731. The next prime is 13712747. The reversal of 13712740 is 4721731.

It is a happy number.

13712740 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3006756 + 10705984 = 1734^2 + 3272^2 .

It is not an unprimeable number, because it can be changed into a prime (13712747) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 342799 + ... + 342838.

It is an arithmetic number, because the mean of its divisors is an integer number (2399733).

Almost surely, 2^13712740 is an apocalyptic number.

13712740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13712740 is an abundant number, since it is smaller than the sum of its proper divisors (15084056).

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

13712740 is a wasteful number, since it uses less digits than its factorization.

13712740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685646 (or 685644 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 13712740 is about 3703.0716979286. The cubic root of 13712740 is about 239.3543991479.

The spelling of 13712740 in words is "thirteen million, seven hundred twelve thousand, seven hundred forty".