18305142 has 16 divisors (see below), whose sum is σ = 36653040. Its totient is φ = 6094592.

The previous prime is 18305129. The next prime is 18305153. The reversal of 18305142 is 24150381.

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, 7534 + ... + 9662.

It is an arithmetic number, because the mean of its divisors is an integer number (2290815).

Almost surely, 2^18305142 is an apocalyptic number.

18305142 is an abundant number, since it is smaller than the sum of its proper divisors (18347898).

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

18305142 is a wasteful number, since it uses less digits than its factorization.

18305142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3567.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 18305142 is about 4278.4508878799. The cubic root of 18305142 is about 263.5467717120.

The spelling of 18305142 in words is "eighteen million, three hundred five thousand, one hundred forty-two".