15009228 has 54 divisors (see below), whose sum is σ = 41099604. Its totient is φ = 4616352.

The previous prime is 15009209. The next prime is 15009277. The reversal of 15009228 is 82290051.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4851 + ... + 7317.

Almost surely, 2^15009228 is an apocalyptic number.

15009228 is a gapful number since it is divisible by the number (18) 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 15009228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20549802).

15009228 is an abundant number, since it is smaller than the sum of its proper divisors (26090376).

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

15009228 is a wasteful number, since it uses less digits than its factorization.

15009228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2503 (or 2485 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 15009228 is about 3874.1744927145. The cubic root of 15009228 is about 246.6717708545.

Adding to 15009228 its reverse (82290051), we get a palindrome (97299279).

The spelling of 15009228 in words is "fifteen million, nine thousand, two hundred twenty-eight".