18349299 has 12 divisors (see below), whose sum is σ = 27221376. Its totient is φ = 11902032.

The previous prime is 18349277. The next prime is 18349319. The reversal of 18349299 is 99294381.

18349299 is a `hidden beast` number, since 18 + 349 + 299 = 666.

It is not a de Polignac number, because 18349299 - 2⁸ = 18349043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18349229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27219 + ... + 27884.

It is an arithmetic number, because the mean of its divisors is an integer number (2268448).

Almost surely, 2^18349299 is an apocalyptic number.

18349299 is a deficient number, since it is larger than the sum of its proper divisors (8872077).

18349299 is a wasteful number, since it uses less digits than its factorization.

18349299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55146 (or 55143 counting only the distinct ones).

The product of its digits is 139968, while the sum is 45.

The square root of 18349299 is about 4283.6081753587. The cubic root of 18349299 is about 263.7585171287.

The spelling of 18349299 in words is "eighteen million, three hundred forty-nine thousand, two hundred ninety-nine".