22625226 has 48 divisors (see below), whose sum is σ = 54512640. Its totient is φ = 6734880.

The previous prime is 22625221. The next prime is 22625227. The reversal of 22625226 is 62252622.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 22625226.

It is not an unprimeable number, because it can be changed into a prime (22625221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5695 + ... + 8813.

It is an arithmetic number, because the mean of its divisors is an integer number (1135680).

Almost surely, 2^22625226 is an apocalyptic number.

22625226 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 22625226, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27256320).

22625226 is an abundant number, since it is smaller than the sum of its proper divisors (31887414).

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

22625226 is a wasteful number, since it uses less digits than its factorization.

22625226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3171 (or 3168 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 22625226 is about 4756.5981541434. The cubic root of 22625226 is about 282.8335830217.

Adding to 22625226 its reverse (62252622), we get a palindrome (84877848).

It can be divided in two parts, 226 and 25226, that added together give a palindrome (25452).

The spelling of 22625226 in words is "twenty-two million, six hundred twenty-five thousand, two hundred twenty-six".