22105710 has 96 divisors (see below), whose sum is σ = 65100672. Its totient is φ = 5352480.

The previous prime is 22105709. The next prime is 22105739. The reversal of 22105710 is 1750122.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 26317 + ... + 27143.

It is an arithmetic number, because the mean of its divisors is an integer number (678132).

Almost surely, 2^22105710 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22105710, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32550336).

22105710 is an abundant number, since it is smaller than the sum of its proper divisors (42994962).

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

22105710 is a wasteful number, since it uses less digits than its factorization.

22105710 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 860 (or 848 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 18.

The square root of 22105710 is about 4701.6709795561. The cubic root of 22105710 is about 280.6520094604.

Adding to 22105710 its reverse (1750122), we get a palindrome (23855832).

The spelling of 22105710 in words is "twenty-two million, one hundred five thousand, seven hundred ten".