18412222 has 8 divisors (see below), whose sum is σ = 27951336. Its totient is φ = 9095112.

The previous prime is 18412201. The next prime is 18412237. The reversal of 18412222 is 22221481.

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

It is a junction number, because it is equal to n+sod(n) for n = 18412193 and 18412202.

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, 55293 + ... + 55624.

It is an arithmetic number, because the mean of its divisors is an integer number (3493917).

Almost surely, 2^18412222 is an apocalyptic number.

18412222 is a deficient number, since it is larger than the sum of its proper divisors (9539114).

18412222 is a wasteful number, since it uses less digits than its factorization.

18412222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111002.

The product of its digits is 512, while the sum is 22.

The square root of 18412222 is about 4290.9465156303. The cubic root of 18412222 is about 264.0596647362.

The spelling of 18412222 in words is "eighteen million, four hundred twelve thousand, two hundred twenty-two".