18840204 has 36 divisors (see below), whose sum is σ = 47758984. Its totient is φ = 6262272.

The previous prime is 18840179. The next prime is 18840209. The reversal of 18840204 is 40204881.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (18840209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20319 + ... + 21225.

Almost surely, 2^18840204 is an apocalyptic number.

It is an amenable number.

18840204 is an abundant number, since it is smaller than the sum of its proper divisors (28918780).

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

18840204 is a wasteful number, since it uses less digits than its factorization.

18840204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1494 (or 1489 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 27.

The square root of 18840204 is about 4340.5303823381. The cubic root of 18840204 is about 266.0899878325.

It can be divided in two parts, 18840 and 204, that added together give a square (19044 = 138²).

The spelling of 18840204 in words is "eighteen million, eight hundred forty thousand, two hundred four".