13657480 has 32 divisors (see below), whose sum is σ = 31026240. Its totient is φ = 5410240.

The previous prime is 13657471. The next prime is 13657487. The reversal of 13657480 is 8475631.

It is not an unprimeable number, because it can be changed into a prime (13657487) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2685 + ... + 5875.

It is an arithmetic number, because the mean of its divisors is an integer number (969570).

Almost surely, 2^13657480 is an apocalyptic number.

13657480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13657480 is an abundant number, since it is smaller than the sum of its proper divisors (17368760).

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

13657480 is a wasteful number, since it uses less digits than its factorization.

13657480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3309 (or 3305 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 13657480 is about 3695.6027925090. The cubic root of 13657480 is about 239.0324471741.

The spelling of 13657480 in words is "thirteen million, six hundred fifty-seven thousand, four hundred eighty".