18322142 has 8 divisors (see below), whose sum is σ = 28431000. Its totient is φ = 8845144.

The previous prime is 18322123. The next prime is 18322181. The reversal of 18322142 is 24122381.

It is a happy number.

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

It is a congruent number.

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, 157892 + ... + 158007.

It is an arithmetic number, because the mean of its divisors is an integer number (3553875).

Almost surely, 2^18322142 is an apocalyptic number.

18322142 is a deficient number, since it is larger than the sum of its proper divisors (10108858).

18322142 is a wasteful number, since it uses less digits than its factorization.

18322142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315930.

The product of its digits is 768, while the sum is 23.

The square root of 18322142 is about 4280.4371272103. The cubic root of 18322142 is about 263.6283318347.

The spelling of 18322142 in words is "eighteen million, three hundred twenty-two thousand, one hundred forty-two".