13868780 has 24 divisors (see below), whose sum is σ = 30065280. Its totient is φ = 5368320.

The previous prime is 13868773. The next prime is 13868797. The reversal of 13868780 is 8786831.

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, 10565 + ... + 11804.

It is an arithmetic number, because the mean of its divisors is an integer number (1252720).

Almost surely, 2^13868780 is an apocalyptic number.

13868780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13868780 is an abundant number, since it is smaller than the sum of its proper divisors (16196500).

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

13868780 is a wasteful number, since it uses less digits than its factorization.

13868780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22409 (or 22407 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 13868780 is about 3724.0810947132. The cubic root of 13868780 is about 240.2588642070.

The spelling of 13868780 in words is "thirteen million, eight hundred sixty-eight thousand, seven hundred eighty".