22426456 has 32 divisors (see below), whose sum is σ = 45561600. Its totient is φ = 10287360.

The previous prime is 22426421. The next prime is 22426457. The reversal of 22426456 is 65462422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22426457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19300 + ... + 20428.

It is an arithmetic number, because the mean of its divisors is an integer number (1423800).

Almost surely, 2^22426456 is an apocalyptic number.

22426456 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 22426456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22780800).

22426456 is an abundant number, since it is smaller than the sum of its proper divisors (23135144).

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

22426456 is a wasteful number, since it uses less digits than its factorization.

22426456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1339 (or 1335 counting only the distinct ones).

The product of its digits is 23040, while the sum is 31.

The square root of 22426456 is about 4735.6579268355. The cubic root of 22426456 is about 282.0028837959.

Adding to 22426456 its reverse (65462422), we get a palindrome (87888878).

The spelling of 22426456 in words is "twenty-two million, four hundred twenty-six thousand, four hundred fifty-six".