15328872 has 128 divisors (see below), whose sum is σ = 47174400. Its totient is φ = 4582656.

The previous prime is 15328867. The next prime is 15328889. The reversal of 15328872 is 27882351.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 148773 + ... + 148875.

It is an arithmetic number, because the mean of its divisors is an integer number (368550).

Almost surely, 2^15328872 is an apocalyptic number.

15328872 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 15328872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23587200).

15328872 is an abundant number, since it is smaller than the sum of its proper divisors (31845528).

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

15328872 is a wasteful number, since it uses less digits than its factorization.

15328872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184 (or 174 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 15328872 is about 3915.2103391772. The cubic root of 15328872 is about 248.4105668916.

It can be divided in two parts, 1532 and 8872, that added together give a square (10404 = 102²).

The spelling of 15328872 in words is "fifteen million, three hundred twenty-eight thousand, eight hundred seventy-two".