22199768 has 8 divisors (see below), whose sum is σ = 41624580. Its totient is φ = 11099880.

The previous prime is 22199767. The next prime is 22199777. The reversal of 22199768 is 86799122.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22199767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1387478 + ... + 1387493.

Almost surely, 2^22199768 is an apocalyptic number.

It is an amenable number.

22199768 is a deficient number, since it is larger than the sum of its proper divisors (19424812).

22199768 is a wasteful number, since it uses less digits than its factorization.

22199768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2774977 (or 2774973 counting only the distinct ones).

The product of its digits is 108864, while the sum is 44.

The square root of 22199768 is about 4711.6629760627. The cubic root of 22199768 is about 281.0494967329.

The spelling of 22199768 in words is "twenty-two million, one hundred ninety-nine thousand, seven hundred sixty-eight".