18142822 has 8 divisors (see below), whose sum is σ = 27238176. Its totient is φ = 9063432.

The previous prime is 18142819. The next prime is 18142823. The reversal of 18142822 is 22824181.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18142823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 558 + ... + 6049.

It is an arithmetic number, because the mean of its divisors is an integer number (3404772).

Almost surely, 2^18142822 is an apocalyptic number.

18142822 is a deficient number, since it is larger than the sum of its proper divisors (9095354).

18142822 is a wasteful number, since it uses less digits than its factorization.

18142822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7982.

The product of its digits is 2048, while the sum is 28.

The square root of 18142822 is about 4259.4391649606. The cubic root of 18142822 is about 262.7654614607.

The spelling of 18142822 in words is "eighteen million, one hundred forty-two thousand, eight hundred twenty-two".