18059222 has 8 divisors (see below), whose sum is σ = 27136296. Its totient is φ = 9013792.

The previous prime is 18059221. The next prime is 18059243. The reversal of 18059222 is 22295081.

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

It is a super-2 number, since 2×18059222² = 652270998490568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18059221) 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, 6428 + ... + 8799.

It is an arithmetic number, because the mean of its divisors is an integer number (3392037).

Almost surely, 2^18059222 is an apocalyptic number.

18059222 is a deficient number, since it is larger than the sum of its proper divisors (9077074).

18059222 is a wasteful number, since it uses less digits than its factorization.

18059222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15822.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 18059222 is about 4249.6143354427. The cubic root of 18059222 is about 262.3612424631.

It can be divided in two parts, 18059 and 222, that added together give a palindrome (18281).

The spelling of 18059222 in words is "eighteen million, fifty-nine thousand, two hundred twenty-two".