18842308 has 6 divisors (see below), whose sum is σ = 32974046. Its totient is φ = 9421152.

The previous prime is 18842297. The next prime is 18842309. The reversal of 18842308 is 80324881.

It can be written as a sum of positive squares in only one way, i.e., 15856324 + 2985984 = 3982^2 + 1728^2 .

It is not an unprimeable number, because it can be changed into a prime (18842309) 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 as a sum of consecutive naturals, namely, 2355285 + ... + 2355292.

Almost surely, 2^18842308 is an apocalyptic number.

It is an amenable number.

18842308 is a deficient number, since it is larger than the sum of its proper divisors (14131738).

18842308 is a wasteful number, since it uses less digits than its factorization.

18842308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4710581 (or 4710579 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 34.

The square root of 18842308 is about 4340.7727422661. The cubic root of 18842308 is about 266.0998927587.

The spelling of 18842308 in words is "eighteen million, eight hundred forty-two thousand, three hundred eight".