229499399 has 4 divisors (see below), whose sum is σ = 232264536. Its totient is φ = 226734264.

The previous prime is 229499393. The next prime is 229499401. The reversal of 229499399 is 993994922.

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 229499399 - 2⁴ = 229499383 is a prime.

It is a super-2 number, since 2×229499399² = 105339948282722402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229499393) 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, 1382444 + ... + 1382609.

It is an arithmetic number, because the mean of its divisors is an integer number (58066134).

Almost surely, 2^229499399 is an apocalyptic number.

229499399 is a deficient number, since it is larger than the sum of its proper divisors (2765137).

229499399 is an equidigital number, since it uses as much as digits as its factorization.

229499399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2765136.

The product of its digits is 2834352, while the sum is 56.

The square root of 229499399 is about 15149.2375715744. The cubic root of 229499399 is about 612.2477308482.

The spelling of 229499399 in words is "two hundred twenty-nine million, four hundred ninety-nine thousand, three hundred ninety-nine".