22199766 has 8 divisors (see below), whose sum is σ = 44399544. Its totient is φ = 7399920.

The previous prime is 22199747. The next prime is 22199767. The reversal of 22199766 is 66799122.

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

22199766 is an admirable number.

It is a super-2 number, since 2×22199766² = 985659220909512, which contains 22 as substring.

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 in 3 ways as a sum of consecutive naturals, for example, 1849975 + ... + 1849986.

It is an arithmetic number, because the mean of its divisors is an integer number (5549943).

Almost surely, 2^22199766 is an apocalyptic number.

22199766 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

22199766 is a wasteful number, since it uses less digits than its factorization.

22199766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3699966.

The product of its digits is 81648, while the sum is 42.

The square root of 22199766 is about 4711.6627638234. The cubic root of 22199766 is about 281.0494882929.

The spelling of 22199766 in words is "twenty-two million, one hundred ninety-nine thousand, seven hundred sixty-six".