22252776 has 128 divisors (see below), whose sum is σ = 71608320. Its totient is φ = 5601024.

The previous prime is 22252771. The next prime is 22252793. The reversal of 22252776 is 67725222.

It is not an unprimeable number, because it can be changed into a prime (22252771) 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, 50011 + ... + 50453.

It is an arithmetic number, because the mean of its divisors is an integer number (559440).

Almost surely, 2^22252776 is an apocalyptic number.

22252776 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22252776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35804160).

22252776 is an abundant number, since it is smaller than the sum of its proper divisors (49355544).

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

22252776 is a wasteful number, since it uses less digits than its factorization.

22252776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495 (or 491 counting only the distinct ones).

The product of its digits is 23520, while the sum is 33.

The square root of 22252776 is about 4717.2848122622. The cubic root of 22252776 is about 281.2730130305.

Adding to 22252776 its reverse (67725222), we get a palindrome (89977998).

The spelling of 22252776 in words is "twenty-two million, two hundred fifty-two thousand, seven hundred seventy-six".