15228339 has 8 divisors (see below), whose sum is σ = 23205120. Its totient is φ = 8701896.

The previous prime is 15228337. The next prime is 15228361. The reversal of 15228339 is 93382251.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 15228339 - 2¹ = 15228337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15228337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 362559 + ... + 362600.

It is an arithmetic number, because the mean of its divisors is an integer number (2900640).

Almost surely, 2^15228339 is an apocalyptic number.

15228339 is a deficient number, since it is larger than the sum of its proper divisors (7976781).

15228339 is an equidigital number, since it uses as much as digits as its factorization.

15228339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725169.

The product of its digits is 12960, while the sum is 33.

The square root of 15228339 is about 3902.3504455648. The cubic root of 15228339 is about 247.8663160449.

The spelling of 15228339 in words is "fifteen million, two hundred twenty-eight thousand, three hundred thirty-nine".