18238084022 has 4 divisors (see below), whose sum is σ = 27357126036. Its totient is φ = 9119042010.

The previous prime is 18238084019. The next prime is 18238084049. The reversal of 18238084022 is 22048083281.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4559521004 + ... + 4559521007.

It is an arithmetic number, because the mean of its divisors is an integer number (6839281509).

Almost surely, 2^18238084022 is an apocalyptic number.

18238084022 is a deficient number, since it is larger than the sum of its proper divisors (9119042014).

18238084022 is an equidigital number, since it uses as much as digits as its factorization.

18238084022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9119042013.

The product of its (nonzero) digits is 49152, while the sum is 38.

The spelling of 18238084022 in words is "eighteen billion, two hundred thirty-eight million, eighty-four thousand, twenty-two".