22027742 has 16 divisors (see below), whose sum is σ = 36926064. Its totient is φ = 9768000.

The previous prime is 22027711. The next prime is 22027777. The reversal of 22027742 is 24772022.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 11309 + ... + 13112.

It is an arithmetic number, because the mean of its divisors is an integer number (2307879).

Almost surely, 2^22027742 is an apocalyptic number.

22027742 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22027742 is a deficient number, since it is larger than the sum of its proper divisors (14898322).

22027742 is a wasteful number, since it uses less digits than its factorization.

22027742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24475.

The product of its (nonzero) digits is 3136, while the sum is 26.

The square root of 22027742 is about 4693.3721352563. The cubic root of 22027742 is about 280.3216626469.

Adding to 22027742 its reverse (24772022), we get a palindrome (46799764).

The spelling of 22027742 in words is "twenty-two million, twenty-seven thousand, seven hundred forty-two".