18342299 has 6 divisors (see below), whose sum is σ = 18583740. Its totient is φ = 18103956.

The previous prime is 18342283. The next prime is 18342319. The reversal of 18342299 is 99224381.

It is not a de Polignac number, because 18342299 - 2⁴ = 18342283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18342899) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4772 + ... + 7710.

It is an arithmetic number, because the mean of its divisors is an integer number (3097290).

Almost surely, 2^18342299 is an apocalyptic number.

18342299 is a deficient number, since it is larger than the sum of its proper divisors (241441).

18342299 is an frugal number, since it uses more digits than its factorization.

18342299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3097 (or 3018 counting only the distinct ones).

The product of its digits is 31104, while the sum is 38.

The square root of 18342299 is about 4282.7910292238. The cubic root of 18342299 is about 263.7249728055.

The spelling of 18342299 in words is "eighteen million, three hundred forty-two thousand, two hundred ninety-nine".