13889392 has 40 divisors (see below), whose sum is σ = 29931120. Its totient is φ = 6190080.

The previous prime is 13889389. The next prime is 13889411. The reversal of 13889392 is 29398831.

It is a happy number.

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, 8584 + ... + 10072.

It is an arithmetic number, because the mean of its divisors is an integer number (748278).

Almost surely, 2^13889392 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13889392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14965560).

13889392 is an abundant number, since it is smaller than the sum of its proper divisors (16041728).

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

13889392 is a wasteful number, since it uses less digits than its factorization.

13889392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1561 (or 1555 counting only the distinct ones).

The product of its digits is 93312, while the sum is 43.

The square root of 13889392 is about 3726.8474613271. The cubic root of 13889392 is about 240.3778307967.

The spelling of 13889392 in words is "thirteen million, eight hundred eighty-nine thousand, three hundred ninety-two".