13928189 has 12 divisors (see below), whose sum is σ = 15576960. Its totient is φ = 12441000.

The previous prime is 13928183. The next prime is 13928221. The reversal of 13928189 is 98182931.

It is a de Polignac number, because none of the positive numbers 2^k-13928189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13928183) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6164 + ... + 8114.

It is an arithmetic number, because the mean of its divisors is an integer number (1298080).

Almost surely, 2^13928189 is an apocalyptic number.

It is an amenable number.

13928189 is a deficient number, since it is larger than the sum of its proper divisors (1648771).

13928189 is a wasteful number, since it uses less digits than its factorization.

13928189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2032 (or 2021 counting only the distinct ones).

The product of its digits is 31104, while the sum is 41.

The square root of 13928189 is about 3732.0489010730. The cubic root of 13928189 is about 240.6014371485.

The spelling of 13928189 in words is "thirteen million, nine hundred twenty-eight thousand, one hundred eighty-nine".