19868022 has 12 divisors (see below), whose sum is σ = 43047420. Its totient is φ = 6622668.

The previous prime is 19868003. The next prime is 19868027. The reversal of 19868022 is 22086891.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19868027) 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, 551872 + ... + 551907.

It is an arithmetic number, because the mean of its divisors is an integer number (3587285).

Almost surely, 2^19868022 is an apocalyptic number.

19868022 is an abundant number, since it is smaller than the sum of its proper divisors (23179398).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19868022 is a wasteful number, since it uses less digits than its factorization.

19868022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1103787 (or 1103784 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 19868022 is about 4457.3559427086. The cubic root of 19868022 is about 270.8433711362.

The spelling of 19868022 in words is "nineteen million, eight hundred sixty-eight thousand, twenty-two".