22809844 has 12 divisors (see below), whose sum is σ = 39963168. Its totient is φ = 11391800.

The previous prime is 22809827. The next prime is 22809881. The reversal of 22809844 is 44890822.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1359 + ... + 6889.

It is an arithmetic number, because the mean of its divisors is an integer number (3330264).

Almost surely, 2^22809844 is an apocalyptic number.

It is an amenable number.

22809844 is a deficient number, since it is larger than the sum of its proper divisors (17153324).

22809844 is a wasteful number, since it uses less digits than its factorization.

22809844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6566 (or 6564 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 37.

The square root of 22809844 is about 4775.9652427546. The cubic root of 22809844 is about 283.6007913545.

It can be divided in two parts, 22809 and 844, that added together give a triangular number (23653 = T₂₁₇).

The spelling of 22809844 in words is "twenty-two million, eight hundred nine thousand, eight hundred forty-four".