190304018 has 16 divisors (see below), whose sum is σ = 307205784. Its totient is φ = 88085760.

The previous prime is 190304017. The next prime is 190304021. The reversal of 190304018 is 810403091.

It can be written as a sum of positive squares in 4 ways, for example, as 177076249 + 13227769 = 13307^2 + 3637^2 .

It is not an unprimeable number, because it can be changed into a prime (190304017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43805 + ... + 47952.

Almost surely, 2^190304018 is an apocalyptic number.

190304018 is a deficient number, since it is larger than the sum of its proper divisors (116901766).

190304018 is a wasteful number, since it uses less digits than its factorization.

190304018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91837.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 190304018 is about 13795.0722361284. The cubic root of 190304018 is about 575.1961704948.

The spelling of 190304018 in words is "one hundred ninety million, three hundred four thousand, eighteen".