18800084 has 6 divisors (see below), whose sum is σ = 32900154. Its totient is φ = 9400040.

The previous prime is 18800077. The next prime is 18800087. The reversal of 18800084 is 48000881.

It can be written as a sum of positive squares in only one way, i.e., 16483600 + 2316484 = 4060^2 + 1522^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18800087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2350007 + ... + 2350014.

It is an arithmetic number, because the mean of its divisors is an integer number (5483359).

Almost surely, 2^18800084 is an apocalyptic number.

It is an amenable number.

18800084 is a deficient number, since it is larger than the sum of its proper divisors (14100070).

18800084 is a wasteful number, since it uses less digits than its factorization.

18800084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4700025 (or 4700023 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 29.

The square root of 18800084 is about 4335.9063643026. The cubic root of 18800084 is about 265.9009750685.

The spelling of 18800084 in words is "eighteen million, eight hundred thousand, eighty-four".