13988328 has 32 divisors (see below), whose sum is σ = 35717760. Its totient is φ = 4563200.

The previous prime is 13988321. The next prime is 13988341. The reversal of 13988328 is 82388931.

It is a self number, because there is not a number n which added to its sum of digits gives 13988328.

It is not an unprimeable number, because it can be changed into a prime (13988321) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 5073 + ... + 7328.

It is an arithmetic number, because the mean of its divisors is an integer number (1116180).

Almost surely, 2^13988328 is an apocalyptic number.

It is an amenable number.

13988328 is an abundant number, since it is smaller than the sum of its proper divisors (21729432).

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

13988328 is a wasteful number, since it uses less digits than its factorization.

13988328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12457 (or 12453 counting only the distinct ones).

The product of its digits is 82944, while the sum is 42.

The square root of 13988328 is about 3740.0973249369. The cubic root of 13988328 is about 240.9472287939.

The spelling of 13988328 in words is "thirteen million, nine hundred eighty-eight thousand, three hundred twenty-eight".