18509096 has 16 divisors (see below), whose sum is σ = 34754100. Its totient is φ = 9241344.

The previous prime is 18509093. The next prime is 18509119. The reversal of 18509096 is 69090581.

It can be written as a sum of positive squares in 2 ways, for example, as 17724100 + 784996 = 4210^2 + 886^2 .

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (18509093) 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 3 ways as a sum of consecutive naturals, for example, 6926 + ... + 9218.

Almost surely, 2^18509096 is an apocalyptic number.

It is an amenable number.

18509096 is a deficient number, since it is larger than the sum of its proper divisors (16245004).

18509096 is a wasteful number, since it uses less digits than its factorization.

18509096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3308 (or 3304 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 38.

The square root of 18509096 is about 4302.2198921022. The cubic root of 18509096 is about 264.5219624346.

The spelling of 18509096 in words is "eighteen million, five hundred nine thousand, ninety-six".