18082204 has 24 divisors (see below), whose sum is σ = 36313088. Its totient is φ = 7717680.

The previous prime is 18082201. The next prime is 18082213. The reversal of 18082204 is 40228081.

It is a super-2 number, since 2×18082204² = 653932202995232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18082201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6397 + ... + 8779.

Almost surely, 2^18082204 is an apocalyptic number.

18082204 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

18082204 is an abundant number, since it is smaller than the sum of its proper divisors (18230884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18082204 is a wasteful number, since it uses less digits than its factorization.

18082204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2665 (or 2663 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 25.

The square root of 18082204 is about 4252.3174857952. The cubic root of 18082204 is about 262.4724881220.

The spelling of 18082204 in words is "eighteen million, eighty-two thousand, two hundred four".