22019768 has 16 divisors (see below), whose sum is σ = 41614080. Its totient is φ = 10922688.

The previous prime is 22019761. The next prime is 22019791. The reversal of 22019768 is 86791022.

It is a happy number.

It is a Smith number, since the sum of its digits (35) 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 (22019761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9821 + ... + 11852.

It is an arithmetic number, because the mean of its divisors is an integer number (2600880).

Almost surely, 2^22019768 is an apocalyptic number.

It is an amenable number.

22019768 is a deficient number, since it is larger than the sum of its proper divisors (19594312).

22019768 is a wasteful number, since it uses less digits than its factorization.

22019768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21806 (or 21802 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 22019768 is about 4692.5225625457. The cubic root of 22019768 is about 280.2878332646.

The spelling of 22019768 in words is "twenty-two million, nineteen thousand, seven hundred sixty-eight".