22422681 has 12 divisors (see below), whose sum is σ = 32435520. Its totient is φ = 14926680.

The previous prime is 22422671. The next prime is 22422683. The reversal of 22422681 is 18622422.

It is a happy number.

It is not a de Polignac number, because 22422681 - 2⁷ = 22422553 is a prime.

It is a super-2 number, since 2×22422681² = 1005553246455522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22422683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6916 + ... + 9626.

It is an arithmetic number, because the mean of its divisors is an integer number (2702960).

Almost surely, 2^22422681 is an apocalyptic number.

It is an amenable number.

22422681 is a deficient number, since it is larger than the sum of its proper divisors (10012839).

22422681 is a wasteful number, since it uses less digits than its factorization.

22422681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3636 (or 3633 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

The square root of 22422681 is about 4735.2593381989. The cubic root of 22422681 is about 281.9870599163.

The spelling of 22422681 in words is "twenty-two million, four hundred twenty-two thousand, six hundred eighty-one".