18284099 has 16 divisors (see below), whose sum is σ = 19975680. Its totient is φ = 16679520.

The previous prime is 18284093. The next prime is 18284107. The reversal of 18284099 is 99048281.

It is a cyclic number.

It is not a de Polignac number, because 18284099 - 2⁸ = 18283843 is a prime.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18284093) 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, 67334 + ... + 67604.

It is an arithmetic number, because the mean of its divisors is an integer number (1248480).

Almost surely, 2^18284099 is an apocalyptic number.

18284099 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

18284099 is a deficient number, since it is larger than the sum of its proper divisors (1691581).

18284099 is a wasteful number, since it uses less digits than its factorization.

18284099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410.

The product of its (nonzero) digits is 41472, while the sum is 41.

The square root of 18284099 is about 4275.9909962487. The cubic root of 18284099 is about 263.4457447042.

The spelling of 18284099 in words is "eighteen million, two hundred eighty-four thousand, ninety-nine".