22027770 has 24 divisors (see below), whose sum is σ = 57272436. Its totient is φ = 5874048.

The previous prime is 22027711. The next prime is 22027777. The reversal of 22027770 is 7772022.

It can be written as a sum of positive squares in 2 ways, for example, as 21706281 + 321489 = 4659^2 + 567^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22027777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 122287 + ... + 122466.

Almost surely, 2^22027770 is an apocalyptic number.

22027770 is an abundant number, since it is smaller than the sum of its proper divisors (35244666).

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

22027770 is a wasteful number, since it uses less digits than its factorization.

22027770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244766 (or 244763 counting only the distinct ones).

The product of its (nonzero) digits is 2744, while the sum is 27.

The square root of 22027770 is about 4693.3751181852. The cubic root of 22027770 is about 280.3217814214.

Adding to 22027770 its reverse (7772022), we get a palindrome (29799792).

The spelling of 22027770 in words is "twenty-two million, twenty-seven thousand, seven hundred seventy".