13717420 has 24 divisors (see below), whose sum is σ = 29421504. Its totient is φ = 5369856.

The previous prime is 13717391. The next prime is 13717423. The reversal of 13717420 is 2471731.

It is a happy number.

It is a super-2 number, since 2×13717420² = 376335222912800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13717423) 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, 6357 + ... + 8236.

It is an arithmetic number, because the mean of its divisors is an integer number (1225896).

Almost surely, 2^13717420 is an apocalyptic number.

13717420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13717420 is an abundant number, since it is smaller than the sum of its proper divisors (15704084).

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

13717420 is a wasteful number, since it uses less digits than its factorization.

13717420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14649 (or 14647 counting only the distinct ones).

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

The square root of 13717420 is about 3703.7035518518. The cubic root of 13717420 is about 239.3816256827.

The spelling of 13717420 in words is "thirteen million, seven hundred seventeen thousand, four hundred twenty".