15297228 has 48 divisors (see below), whose sum is σ = 39984000. Its totient is φ = 5057424.

The previous prime is 15297221. The next prime is 15297241. The reversal of 15297228 is 82279251.

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

It is a junction number, because it is equal to n+sod(n) for n = 15297192 and 15297201.

It is not an unprimeable number, because it can be changed into a prime (15297221) 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, 14503 + ... + 15521.

It is an arithmetic number, because the mean of its divisors is an integer number (833000).

Almost surely, 2^15297228 is an apocalyptic number.

15297228 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 15297228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19992000).

15297228 is an abundant number, since it is smaller than the sum of its proper divisors (24686772).

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

15297228 is a wasteful number, since it uses less digits than its factorization.

15297228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1171 (or 1163 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 15297228 is about 3911.1670892459. The cubic root of 15297228 is about 248.2395145305.

The spelling of 15297228 in words is "fifteen million, two hundred ninety-seven thousand, two hundred twenty-eight".