18229822 has 8 divisors (see below), whose sum is σ = 29448216. Its totient is φ = 8413752.

The previous prime is 18229819. The next prime is 18229837. The reversal of 18229822 is 22892281.

It is a happy number.

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, 350548 + ... + 350599.

It is an arithmetic number, because the mean of its divisors is an integer number (3681027).

Almost surely, 2^18229822 is an apocalyptic number.

18229822 is a deficient number, since it is larger than the sum of its proper divisors (11218394).

18229822 is a wasteful number, since it uses less digits than its factorization.

18229822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701162.

The product of its digits is 9216, while the sum is 34.

The square root of 18229822 is about 4269.6395632418. The cubic root of 18229822 is about 263.1848036329.

The spelling of 18229822 in words is "eighteen million, two hundred twenty-nine thousand, eight hundred twenty-two".