18408099 has 8 divisors (see below), whose sum is σ = 24890112. Its totient is φ = 12099080.

The previous prime is 18408083. The next prime is 18408101. The reversal of 18408099 is 99080481.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18408099 - 2⁴ = 18408083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18408199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42999 + ... + 43424.

It is an arithmetic number, because the mean of its divisors is an integer number (3111264).

Almost surely, 2^18408099 is an apocalyptic number.

18408099 is a deficient number, since it is larger than the sum of its proper divisors (6482013).

18408099 is an equidigital number, since it uses as much as digits as its factorization.

18408099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86497.

The product of its (nonzero) digits is 20736, while the sum is 39.

The square root of 18408099 is about 4290.4660586002. The cubic root of 18408099 is about 264.0399532049.

The spelling of 18408099 in words is "eighteen million, four hundred eight thousand, ninety-nine".