13617980 has 24 divisors (see below), whose sum is σ = 28694400. Its totient is φ = 5428800.

The previous prime is 13617977. The next prime is 13618009. The reversal of 13617980 is 8971631.

It is a self number, because there is not a number n which added to its sum of digits gives 13617980.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6005 + ... + 7955.

It is an arithmetic number, because the mean of its divisors is an integer number (1195600).

Almost surely, 2^13617980 is an apocalyptic number.

13617980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13617980 is an abundant number, since it is smaller than the sum of its proper divisors (15076420).

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

13617980 is a wasteful number, since it uses less digits than its factorization.

13617980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2309 (or 2307 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 13617980 is about 3690.2547337548. The cubic root of 13617980 is about 238.8017823959.

The spelling of 13617980 in words is "thirteen million, six hundred seventeen thousand, nine hundred eighty".