22075872 has 216 divisors, whose sum is σ = 76617576. Its totient is φ = 5515776.

The previous prime is 22075861. The next prime is 22075901. The reversal of 22075872 is 27857022.

It is a congruent number.

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 1161879 + ... + 1161897.

It is an arithmetic number, because the mean of its divisors is an integer number (354711).

Almost surely, 2^22075872 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 22075872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38308788).

22075872 is an abundant number, since it is smaller than the sum of its proper divisors (54541704).

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

22075872 is a wasteful number, since it uses less digits than its factorization.

22075872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78 (or 44 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 33.

The square root of 22075872 is about 4698.4967808864. The cubic root of 22075872 is about 280.5256791257.

The spelling of 22075872 in words is "twenty-two million, seventy-five thousand, eight hundred seventy-two".