13889312 has 24 divisors (see below), whose sum is σ = 27473292. Its totient is φ = 6912000.

The previous prime is 13889279. The next prime is 13889321. The reversal of 13889312 is 21398831.

It can be written as a sum of positive squares in 2 ways, for example, as 13808656 + 80656 = 3716^2 + 284^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6812 + ... + 8612.

Almost surely, 2^13889312 is an apocalyptic number.

It is an amenable number.

13889312 is a deficient number, since it is larger than the sum of its proper divisors (13583980).

13889312 is a wasteful number, since it uses less digits than its factorization.

13889312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2052 (or 2044 counting only the distinct ones).

The product of its digits is 10368, while the sum is 35.

The square root of 13889312 is about 3726.8367283797. The cubic root of 13889312 is about 240.3773692871.

The spelling of 13889312 in words is "thirteen million, eight hundred eighty-nine thousand, three hundred twelve".