15328868 has 12 divisors (see below), whose sum is σ = 26853372. Its totient is φ = 7656480.

The previous prime is 15328867. The next prime is 15328889. The reversal of 15328868 is 86882351.

It can be written as a sum of positive squares in 2 ways, for example, as 4293184 + 11035684 = 2072^2 + 3322^2 .

It is a super-2 number, since 2×15328868² = 469948388322848, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (15328861) 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 3 ways as a sum of consecutive naturals, for example, 5378 + ... + 7718.

It is an arithmetic number, because the mean of its divisors is an integer number (2237781).

Almost surely, 2^15328868 is an apocalyptic number.

It is an amenable number.

15328868 is a deficient number, since it is larger than the sum of its proper divisors (11524504).

15328868 is a wasteful number, since it uses less digits than its factorization.

15328868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3982 (or 3980 counting only the distinct ones).

The product of its digits is 92160, while the sum is 41.

The square root of 15328868 is about 3915.2098283489. The cubic root of 15328868 is about 248.4105452844.

The spelling of 15328868 in words is "fifteen million, three hundred twenty-eight thousand, eight hundred sixty-eight".