18002204 has 24 divisors (see below), whose sum is σ = 34809600. Its totient is φ = 8077680.

The previous prime is 18002189. The next prime is 18002233. The reversal of 18002204 is 40220081.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 887 + ... + 6065.

It is an arithmetic number, because the mean of its divisors is an integer number (1450400).

Almost surely, 2^18002204 is an apocalyptic number.

It is an amenable number.

18002204 is a deficient number, since it is larger than the sum of its proper divisors (16807396).

18002204 is a wasteful number, since it uses less digits than its factorization.

18002204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5273 (or 5271 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 18002204 is about 4242.9004230597. The cubic root of 18002204 is about 262.0848354918.

Adding to 18002204 its reverse (40220081), we get a palindrome (58222285).

It can be divided in two parts, 1800 and 2204, that added together give a palindrome (4004).

The spelling of 18002204 in words is "eighteen million, two thousand, two hundred four".