18022342 has 8 divisors (see below), whose sum is σ = 29113056. Its totient is φ = 8317992.

The previous prime is 18022337. The next prime is 18022343. The reversal of 18022342 is 24322081.

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

It is a super-2 number, since 2×18022342² = 649609622329928, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18022343) 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, 346558 + ... + 346609.

It is an arithmetic number, because the mean of its divisors is an integer number (3639132).

Almost surely, 2^18022342 is an apocalyptic number.

18022342 is a deficient number, since it is larger than the sum of its proper divisors (11090714).

18022342 is a wasteful number, since it uses less digits than its factorization.

18022342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693182.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 18022342 is about 4245.2729005330. The cubic root of 18022342 is about 262.1825253382.

It can be divided in two parts, 180 and 22342, that added together give a palindrome (22522).

The spelling of 18022342 in words is "eighteen million, twenty-two thousand, three hundred forty-two".