15028224 has 52 divisors (see below), whose sum is σ = 40103136. Its totient is φ = 5005312.

The previous prime is 15028219. The next prime is 15028231. The reversal of 15028224 is 42282051.

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

It is a nialpdrome in base 4 and base 16.

It is a junction number, because it is equal to n+sod(n) for n = 15028194 and 15028203.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11677 + ... + 12899.

Almost surely, 2^15028224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15028224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20051568).

15028224 is an abundant number, since it is smaller than the sum of its proper divisors (25074912).

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

15028224 is an equidigital number, since it uses as much as digits as its factorization.

15028224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1250 (or 1228 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 15028224 is about 3876.6253365524. The cubic root of 15028224 is about 246.7757913398.

The spelling of 15028224 in words is "fifteen million, twenty-eight thousand, two hundred twenty-four".