18419093 has 16 divisors (see below), whose sum is σ = 23502336. Its totient is φ = 14016240.

The previous prime is 18419069. The next prime is 18419101. The reversal of 18419093 is 39091481.

It is not a de Polignac number, because 18419093 - 2¹⁸ = 18156949 is a prime.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18419293) 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 15 ways as a sum of consecutive naturals, for example, 530 + ... + 6092.

It is an arithmetic number, because the mean of its divisors is an integer number (1468896).

Almost surely, 2^18419093 is an apocalyptic number.

It is an amenable number.

18419093 is a deficient number, since it is larger than the sum of its proper divisors (5083243).

18419093 is a wasteful number, since it uses less digits than its factorization.

18419093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5624.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 18419093 is about 4291.7470801528. The cubic root of 18419093 is about 264.0925075640.

The spelling of 18419093 in words is "eighteen million, four hundred nineteen thousand, ninety-three".