18953222 has 12 divisors (see below), whose sum is σ = 30006036. Its totient is φ = 8977500.

The previous prime is 18953201. The next prime is 18953227. The reversal of 18953222 is 22235981.

It is a happy number.

It is a super-3 number, since 3×18953222³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18953227) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12404 + ... + 13847.

It is an arithmetic number, because the mean of its divisors is an integer number (2500503).

Almost surely, 2^18953222 is an apocalyptic number.

18953222 is a deficient number, since it is larger than the sum of its proper divisors (11052814).

18953222 is a wasteful number, since it uses less digits than its factorization.

18953222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26291 (or 26272 counting only the distinct ones).

The product of its digits is 8640, while the sum is 32.

The square root of 18953222 is about 4353.5298322166. The cubic root of 18953222 is about 266.6209980822.

The spelling of 18953222 in words is "eighteen million, nine hundred fifty-three thousand, two hundred twenty-two".