22039936 has 32 divisors (see below), whose sum is σ = 44155800. Its totient is φ = 10957824.

The previous prime is 22039907. The next prime is 22039937. The reversal of 22039936 is 63993022.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22039937) 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, 29455 + ... + 30193.

Almost surely, 2^22039936 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22039936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22077900).

22039936 is an abundant number, since it is smaller than the sum of its proper divisors (22115864).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22039936 is an equidigital number, since it uses as much as digits as its factorization.

22039936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 986 (or 974 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 34.

The square root of 22039936 is about 4694.6710214881. The cubic root of 22039936 is about 280.3733794290.

The spelling of 22039936 in words is "twenty-two million, thirty-nine thousand, nine hundred thirty-six".