18470222 has 8 divisors (see below), whose sum is σ = 27730272. Its totient is φ = 9226800.

The previous prime is 18470209. The next prime is 18470267. The reversal of 18470222 is 22207481.

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

It is a super-2 number, since 2×18470222² = 682298201458568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18470191 and 18470200.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 854 + ... + 6137.

It is an arithmetic number, because the mean of its divisors is an integer number (3466284).

Almost surely, 2^18470222 is an apocalyptic number.

18470222 is a deficient number, since it is larger than the sum of its proper divisors (9260050).

18470222 is a wasteful number, since it uses less digits than its factorization.

18470222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8314.

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 18470222 is about 4297.6996172371. The cubic root of 18470222 is about 264.3366439259.

The spelling of 18470222 in words is "eighteen million, four hundred seventy thousand, two hundred twenty-two".