18342242 has 8 divisors (see below), whose sum is σ = 27570000. Its totient is φ = 9152244.

The previous prime is 18342223. The next prime is 18342251. The reversal of 18342242 is 24224381.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8192 + ... + 10187.

It is an arithmetic number, because the mean of its divisors is an integer number (3446250).

Almost surely, 2^18342242 is an apocalyptic number.

18342242 is a deficient number, since it is larger than the sum of its proper divisors (9227758).

18342242 is a wasteful number, since it uses less digits than its factorization.

18342242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18880.

The product of its digits is 3072, while the sum is 26.

The square root of 18342242 is about 4282.7843746796. The cubic root of 18342242 is about 263.7246996238.

The spelling of 18342242 in words is "eighteen million, three hundred forty-two thousand, two hundred forty-two".