22026906 has 48 divisors (see below), whose sum is σ = 53071200. Its totient is φ = 6545760.

The previous prime is 22026899. The next prime is 22026911. The reversal of 22026906 is 60962022.

It is a self number, because there is not a number n which added to its sum of digits gives 22026906.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9445 + ... + 11543.

It is an arithmetic number, because the mean of its divisors is an integer number (1105650).

Almost surely, 2^22026906 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22026906, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26535600).

22026906 is an abundant number, since it is smaller than the sum of its proper divisors (31044294).

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

22026906 is a wasteful number, since it uses less digits than its factorization.

22026906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2171 (or 2168 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 22026906 is about 4693.2830726475. The cubic root of 22026906 is about 280.3181163328.

Adding to 22026906 its reverse (60962022), we get a palindrome (82988928).

The spelling of 22026906 in words is "twenty-two million, twenty-six thousand, nine hundred six".