22438036 has 12 divisors (see below), whose sum is σ = 39301780. Its totient is φ = 11208960.

The previous prime is 22438033. The next prime is 22438049. The reversal of 22438036 is 63083422.

It can be written as a sum of positive squares in 2 ways, for example, as 14485636 + 7952400 = 3806^2 + 2820^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22437995 and 22438013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22438033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4996 + ... + 8356.

Almost surely, 2^22438036 is an apocalyptic number.

It is an amenable number.

22438036 is a deficient number, since it is larger than the sum of its proper divisors (16863744).

22438036 is a wasteful number, since it uses less digits than its factorization.

22438036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5034 (or 5032 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 22438036 is about 4736.8804080323. The cubic root of 22438036 is about 282.0514132573.

The spelling of 22438036 in words is "twenty-two million, four hundred thirty-eight thousand, thirty-six".