13994780 has 24 divisors (see below), whose sum is σ = 30074352. Its totient is φ = 5467392.

The previous prime is 13994779. The next prime is 13994797. The reversal of 13994780 is 8749931.

It is a happy number.

13994780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 7277 + ... + 8996.

It is an arithmetic number, because the mean of its divisors is an integer number (1253098).

Almost surely, 2^13994780 is an apocalyptic number.

13994780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13994780 is an abundant number, since it is smaller than the sum of its proper divisors (16079572).

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

13994780 is a wasteful number, since it uses less digits than its factorization.

13994780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16325 (or 16323 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 13994780 is about 3740.9597698986. The cubic root of 13994780 is about 240.9842680685.

The spelling of 13994780 in words is "thirteen million, nine hundred ninety-four thousand, seven hundred eighty".