18930099 has 16 divisors (see below), whose sum is σ = 26812800. Its totient is φ = 11846016.

The previous prime is 18930089. The next prime is 18930101. The reversal of 18930099 is 99003981.

It is not a de Polignac number, because 18930099 - 2⁴ = 18930083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18930089) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4972 + ... + 7910.

It is an arithmetic number, because the mean of its divisors is an integer number (1675800).

Almost surely, 2^18930099 is an apocalyptic number.

18930099 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

18930099 is a deficient number, since it is larger than the sum of its proper divisors (7882701).

18930099 is a wasteful number, since it uses less digits than its factorization.

18930099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3074.

The product of its (nonzero) digits is 17496, while the sum is 39.

The square root of 18930099 is about 4350.8733606024. The cubic root of 18930099 is about 266.5125277619.

The spelling of 18930099 in words is "eighteen million, nine hundred thirty thousand, ninety-nine".