18234042 has 16 divisors (see below), whose sum is σ = 36560160. Its totient is φ = 6062672.

The previous prime is 18234037. The next prime is 18234043. The reversal of 18234042 is 24043281.

It is not an unprimeable number, because it can be changed into a prime (18234043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1113 + ... + 6140.

It is an arithmetic number, because the mean of its divisors is an integer number (2285010).

Almost surely, 2^18234042 is an apocalyptic number.

18234042 is an abundant number, since it is smaller than the sum of its proper divisors (18326118).

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

18234042 is a wasteful number, since it uses less digits than its factorization.

18234042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7677.

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 18234042 is about 4270.1337215595. The cubic root of 18234042 is about 263.2051101794.

The spelling of 18234042 in words is "eighteen million, two hundred thirty-four thousand, forty-two".