22426434 has 48 divisors (see below), whose sum is σ = 52127712. Its totient is φ = 6943104.

The previous prime is 22426421. The next prime is 22426457. The reversal of 22426434 is 43462422.

22426434 is a `hidden beast` number, since 224 + 2 + 6 + 434 = 666.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22426398 and 22426407.

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, 24957 + ... + 25839.

It is an arithmetic number, because the mean of its divisors is an integer number (1085994).

Almost surely, 2^22426434 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22426434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26063856).

22426434 is an abundant number, since it is smaller than the sum of its proper divisors (29701278).

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

22426434 is a wasteful number, since it uses less digits than its factorization.

22426434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991 (or 988 counting only the distinct ones).

The product of its digits is 9216, while the sum is 27.

The square root of 22426434 is about 4735.6556040320. The cubic root of 22426434 is about 282.0027915824.

Adding to 22426434 its reverse (43462422), we get a palindrome (65888856).

The spelling of 22426434 in words is "twenty-two million, four hundred twenty-six thousand, four hundred thirty-four".