13886780 has 12 divisors (see below), whose sum is σ = 29162280. Its totient is φ = 5554704.

The previous prime is 13886723. The next prime is 13886783. The reversal of 13886780 is 8768831.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13886783) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 347150 + ... + 347189.

It is an arithmetic number, because the mean of its divisors is an integer number (2430190).

Almost surely, 2^13886780 is an apocalyptic number.

13886780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13886780 is an abundant number, since it is smaller than the sum of its proper divisors (15275500).

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

13886780 is a wasteful number, since it uses less digits than its factorization.

13886780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694348 (or 694346 counting only the distinct ones).

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

The square root of 13886780 is about 3726.4970146238. The cubic root of 13886780 is about 240.3627615924.

The spelling of 13886780 in words is "thirteen million, eight hundred eighty-six thousand, seven hundred eighty".