22110426 has 48 divisors (see below), whose sum is σ = 52470600. Its totient is φ = 6687360.

The previous prime is 22110419. The next prime is 22110443. The reversal of 22110426 is 62401122.

It can be written as a sum of positive squares in 4 ways, for example, as 7017201 + 15093225 = 2649^2 + 3885^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 22110399 and 22110408.

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 23 ways as a sum of consecutive naturals, for example, 13500 + ... + 15048.

Almost surely, 2^22110426 is an apocalyptic number.

22110426 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 22110426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26235300).

22110426 is an abundant number, since it is smaller than the sum of its proper divisors (30360174).

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

22110426 is a wasteful number, since it uses less digits than its factorization.

22110426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1631 (or 1628 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 22110426 is about 4702.1724766325. The cubic root of 22110426 is about 280.6719660051.

Adding to 22110426 its reverse (62401122), we get a palindrome (84511548).

The spelling of 22110426 in words is "twenty-two million, one hundred ten thousand, four hundred twenty-six".