15228398 has 4 divisors (see below), whose sum is σ = 22842600. Its totient is φ = 7614198.

The previous prime is 15228397. The next prime is 15228401. The reversal of 15228398 is 89382251.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15228397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3807098 + ... + 3807101.

It is an arithmetic number, because the mean of its divisors is an integer number (5710650).

Almost surely, 2^15228398 is an apocalyptic number.

15228398 is a deficient number, since it is larger than the sum of its proper divisors (7614202).

15228398 is an equidigital number, since it uses as much as digits as its factorization.

15228398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7614201.

The product of its digits is 34560, while the sum is 38.

The square root of 15228398 is about 3902.3580051041. The cubic root of 15228398 is about 247.8666361519.

The spelling of 15228398 in words is "fifteen million, two hundred twenty-eight thousand, three hundred ninety-eight".