13713240 has 32 divisors (see below), whose sum is σ = 41140080. Its totient is φ = 3656832.

The previous prime is 13713239. The next prime is 13713247. The reversal of 13713240 is 4231731.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13713247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57019 + ... + 57258.

Almost surely, 2^13713240 is an apocalyptic number.

13713240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13713240 is an abundant number, since it is smaller than the sum of its proper divisors (27426840).

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

13713240 is a wasteful number, since it uses less digits than its factorization.

13713240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114291 (or 114287 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 13713240 is about 3703.1392088335. The cubic root of 13713240 is about 239.3573082612.

Adding to 13713240 its reverse (4231731), we get a palindrome (17944971).

The spelling of 13713240 in words is "thirteen million, seven hundred thirteen thousand, two hundred forty".