22790066 has 16 divisors (see below), whose sum is σ = 37145304. Its totient is φ = 10424064.

The previous prime is 22790059. The next prime is 22790069. The reversal of 22790066 is 66009722.

It can be written as a sum of positive squares in 4 ways, for example, as 12453841 + 10336225 = 3529^2 + 3215^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22790069) 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 7 ways as a sum of consecutive naturals, for example, 941 + ... + 6816.

Almost surely, 2^22790066 is an apocalyptic number.

22790066 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

22790066 is a deficient number, since it is larger than the sum of its proper divisors (14355238).

22790066 is a wasteful number, since it uses less digits than its factorization.

22790066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7885.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 22790066 is about 4773.8942175126. The cubic root of 22790066 is about 283.5187992929.

Adding to 22790066 its reverse (66009722), we get a palindrome (88799788).

The spelling of 22790066 in words is "twenty-two million, seven hundred ninety thousand, sixty-six".