22421334 has 64 divisors (see below), whose sum is σ = 52629696. Its totient is φ = 6303744.

The previous prime is 22421309. The next prime is 22421341. The reversal of 22421334 is 43312422.

It is a self number, because there is not a number n which added to its sum of digits gives 22421334.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48834 + ... + 49290.

It is an arithmetic number, because the mean of its divisors is an integer number (822339).

Almost surely, 2^22421334 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22421334, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26314848).

22421334 is an abundant number, since it is smaller than the sum of its proper divisors (30208362).

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

22421334 is a wasteful number, since it uses less digits than its factorization.

22421334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529.

The product of its digits is 1152, while the sum is 21.

The square root of 22421334 is about 4735.1171052045. The cubic root of 22421334 is about 281.9814131907.

Adding to 22421334 its reverse (43312422), we get a palindrome (65733756).

The spelling of 22421334 in words is "twenty-two million, four hundred twenty-one thousand, three hundred thirty-four".