13717440 has 168 divisors, whose sum is σ = 51590448. Its totient is φ = 3317760.

The previous prime is 13717439. The next prime is 13717471. The reversal of 13717440 is 4471731.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31464 + ... + 31896.

It is an arithmetic number, because the mean of its divisors is an integer number (307086).

Almost surely, 2^13717440 is an apocalyptic number.

13717440 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 13717440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25795224).

13717440 is an abundant number, since it is smaller than the sum of its proper divisors (37873008).

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

13717440 is a wasteful number, since it uses less digits than its factorization.

13717440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467 (or 454 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 13717440 is about 3703.7062518510. The cubic root of 13717440 is about 239.3817420221.

The spelling of 13717440 in words is "thirteen million, seven hundred seventeen thousand, four hundred forty".