13944380 has 24 divisors (see below), whose sum is σ = 29354640. Its totient is φ = 5564160.

The previous prime is 13944379. The next prime is 13944401. The reversal of 13944380 is 8344931.

13944380 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, 13316 + ... + 14324.

It is an arithmetic number, because the mean of its divisors is an integer number (1223110).

Almost surely, 2^13944380 is an apocalyptic number.

13944380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13944380 is an abundant number, since it is smaller than the sum of its proper divisors (15410260).

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

13944380 is a wasteful number, since it uses less digits than its factorization.

13944380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1709 (or 1707 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 13944380 is about 3734.2174548358. The cubic root of 13944380 is about 240.6946311106.

The spelling of 13944380 in words is "thirteen million, nine hundred forty-four thousand, three hundred eighty".