18734222 has 8 divisors (see below), whose sum is σ = 30263016. Its totient is φ = 8646552.

The previous prime is 18734207. The next prime is 18734231. The reversal of 18734222 is 22243781.

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

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, 360248 + ... + 360299.

It is an arithmetic number, because the mean of its divisors is an integer number (3782877).

Almost surely, 2^18734222 is an apocalyptic number.

18734222 is a deficient number, since it is larger than the sum of its proper divisors (11528794).

18734222 is a wasteful number, since it uses less digits than its factorization.

18734222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720562.

The product of its digits is 5376, while the sum is 29.

The square root of 18734222 is about 4328.3047489751. The cubic root of 18734222 is about 265.5901030418.

The spelling of 18734222 in words is "eighteen million, seven hundred thirty-four thousand, two hundred twenty-two".