14991328 has 24 divisors (see below), whose sum is σ = 32198040. Its totient is φ = 6814080.

The previous prime is 14991313. The next prime is 14991349. The reversal of 14991328 is 82319941.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20943 + ... + 21646.

It is an arithmetic number, because the mean of its divisors is an integer number (1341585).

Almost surely, 2^14991328 is an apocalyptic number.

It is an amenable number.

14991328 is an abundant number, since it is smaller than the sum of its proper divisors (17206712).

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

14991328 is a wasteful number, since it uses less digits than its factorization.

14991328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42610 (or 42602 counting only the distinct ones).

The product of its digits is 15552, while the sum is 37.

The square root of 14991328 is about 3871.8636339623. The cubic root of 14991328 is about 246.5736716243.

It can be divided in two parts, 149913 and 28, that added together give a palindrome (149941).

The spelling of 14991328 in words is "fourteen million, nine hundred ninety-one thousand, three hundred twenty-eight".