228993199 has 4 divisors (see below), whose sum is σ = 229027480. Its totient is φ = 228958920.

The previous prime is 228993197. The next prime is 228993211. The reversal of 228993199 is 991399822.

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

It is a cyclic number.

It is not a de Polignac number, because 228993199 - 2¹ = 228993197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228993197) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3504 + ... + 21685.

It is an arithmetic number, because the mean of its divisors is an integer number (57256870).

Almost surely, 2^228993199 is an apocalyptic number.

228993199 is a deficient number, since it is larger than the sum of its proper divisors (34281).

228993199 is an equidigital number, since it uses as much as digits as its factorization.

228993199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34280.

The product of its digits is 629856, while the sum is 52.

The square root of 228993199 is about 15132.5212373880. The cubic root of 228993199 is about 611.7972606180.

The spelling of 228993199 in words is "two hundred twenty-eight million, nine hundred ninety-three thousand, one hundred ninety-nine".