22442836 has 24 divisors (see below), whose sum is σ = 42581000. Its totient is φ = 10288512.

The previous prime is 22442753. The next prime is 22442837. The reversal of 22442836 is 63824422.

It can be written as a sum of positive squares in 4 ways, for example, as 352836 + 22090000 = 594^2 + 4700^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22442798 and 22442807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22442837) 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 7 ways as a sum of consecutive naturals, for example, 6790 + ... + 9538.

Almost surely, 2^22442836 is an apocalyptic number.

22442836 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

22442836 is a deficient number, since it is larger than the sum of its proper divisors (20138164).

22442836 is a wasteful number, since it uses less digits than its factorization.

22442836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2923 (or 2921 counting only the distinct ones).

The product of its digits is 18432, while the sum is 31.

The square root of 22442836 is about 4737.3870435083. The cubic root of 22442836 is about 282.0715242013.

The spelling of 22442836 in words is "twenty-two million, four hundred forty-two thousand, eight hundred thirty-six".