13866980 has 24 divisors (see below), whose sum is σ = 29392440. Its totient is φ = 5495040.

The previous prime is 13866977. The next prime is 13867031. The reversal of 13866980 is 8966831.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1136356 + 12730624 = 1066^2 + 3568^2 .

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, 1001 + ... + 5360.

It is an arithmetic number, because the mean of its divisors is an integer number (1224685).

Almost surely, 2^13866980 is an apocalyptic number.

13866980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13866980 is an abundant number, since it is smaller than the sum of its proper divisors (15525460).

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

13866980 is a wasteful number, since it uses less digits than its factorization.

13866980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6479 (or 6477 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 13866980 is about 3723.8394165162. The cubic root of 13866980 is about 240.2484695251.

The spelling of 13866980 in words is "thirteen million, eight hundred sixty-six thousand, nine hundred eighty".