22038456 has 48 divisors (see below), whose sum is σ = 60568200. Its totient is φ = 6677440.

The previous prime is 22038451. The next prime is 22038479. The reversal of 22038456 is 65483022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22038451) 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, 891 + ... + 6698.

Almost surely, 2^22038456 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 22038456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30284100).

22038456 is an abundant number, since it is smaller than the sum of its proper divisors (38529744).

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

22038456 is a wasteful number, since it uses less digits than its factorization.

22038456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7620 (or 7605 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 22038456 is about 4694.5133933135. The cubic root of 22038456 is about 280.3671035201.

The spelling of 22038456 in words is "twenty-two million, thirty-eight thousand, four hundred fifty-six".