15128232 has 64 divisors (see below), whose sum is σ = 45774720. Its totient is φ = 4067328.

The previous prime is 15128203. The next prime is 15128233. The reversal of 15128232 is 23282151.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15128233) 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 15 ways as a sum of consecutive naturals, for example, 208 + ... + 5504.

It is an arithmetic number, because the mean of its divisors is an integer number (715230).

Almost surely, 2^15128232 is an apocalyptic number.

15128232 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 15128232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22887360).

15128232 is an abundant number, since it is smaller than the sum of its proper divisors (30646488).

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

15128232 is a wasteful number, since it uses less digits than its factorization.

15128232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5330 (or 5326 counting only the distinct ones).

The product of its digits is 960, while the sum is 24.

The square root of 15128232 is about 3889.5027959882. The cubic root of 15128232 is about 247.3219860645.

It can be divided in two parts, 1512 and 8232, that multiplied together give a square (12446784 = 3528²).

The spelling of 15128232 in words is "fifteen million, one hundred twenty-eight thousand, two hundred thirty-two".