18955622 has 8 divisors (see below), whose sum is σ = 32495376. Its totient is φ = 8123832.

The previous prime is 18955619. The next prime is 18955627. The reversal of 18955622 is 22655981.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18955627) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 676973 + ... + 677000.

It is an arithmetic number, because the mean of its divisors is an integer number (4061922).

Almost surely, 2^18955622 is an apocalyptic number.

18955622 is a deficient number, since it is larger than the sum of its proper divisors (13539754).

18955622 is a wasteful number, since it uses less digits than its factorization.

18955622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1353982.

The product of its digits is 43200, while the sum is 38.

The square root of 18955622 is about 4353.8054618919. The cubic root of 18955622 is about 266.6322514614.

The spelling of 18955622 in words is "eighteen million, nine hundred fifty-five thousand, six hundred twenty-two".