22056810 has 64 divisors (see below), whose sum is σ = 56208384. Its totient is φ = 5529600.

The previous prime is 22056799. The next prime is 22056817. The reversal of 22056810 is 1865022.

It is a super-2 number, since 2×22056810² = 973005734752200, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22056817) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34090 + ... + 34730.

It is an arithmetic number, because the mean of its divisors is an integer number (878256).

Almost surely, 2^22056810 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22056810, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28104192).

22056810 is an abundant number, since it is smaller than the sum of its proper divisors (34151574).

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

22056810 is a wasteful number, since it uses less digits than its factorization.

22056810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 22056810 is about 4696.4678216719. The cubic root of 22056810 is about 280.4449134169. Note that the first 3 decimals are identical.

The spelling of 22056810 in words is "twenty-two million, fifty-six thousand, eight hundred ten".