19868222 has 16 divisors (see below), whose sum is σ = 32581872. Its totient is φ = 9011520.

The previous prime is 19868213. The next prime is 19868227. The reversal of 19868222 is 22286891.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19868227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16058 + ... + 17250.

It is an arithmetic number, because the mean of its divisors is an integer number (2036367).

Almost surely, 2^19868222 is an apocalyptic number.

19868222 is a deficient number, since it is larger than the sum of its proper divisors (12713650).

19868222 is a wasteful number, since it uses less digits than its factorization.

19868222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1963.

The product of its digits is 27648, while the sum is 38.

The square root of 19868222 is about 4457.3783774771. The cubic root of 19868222 is about 270.8442799415.

The spelling of 19868222 in words is "nineteen million, eight hundred sixty-eight thousand, two hundred twenty-two".