13919232 has 88 divisors (see below), whose sum is σ = 38909376. Its totient is φ = 4415488.

The previous prime is 13919203. The next prime is 13919233. The reversal of 13919232 is 23291931.

It is a happy number.

Its product of digits (2916) is a multiple of the sum of its prime factors (243).

It is a self number, because there is not a number n which added to its sum of digits gives 13919232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13919233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70558 + ... + 70754.

It is an arithmetic number, because the mean of its divisors is an integer number (442152).

Almost surely, 2^13919232 is an apocalyptic number.

13919232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13919232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19454688).

13919232 is an abundant number, since it is smaller than the sum of its proper divisors (24990144).

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

13919232 is a wasteful number, since it uses less digits than its factorization.

13919232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243 (or 225 counting only the distinct ones).

The product of its digits is 2916, while the sum is 30.

The square root of 13919232 is about 3730.8486970125. The cubic root of 13919232 is about 240.5498504179.

The spelling of 13919232 in words is "thirteen million, nine hundred nineteen thousand, two hundred thirty-two".