22023774 has 48 divisors (see below), whose sum is σ = 50993280. Its totient is φ = 6849360.

The previous prime is 22023763. The next prime is 22023787. The reversal of 22023774 is 47732022.

It is a congruent number.

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, 23829 + ... + 24735.

It is an arithmetic number, because the mean of its divisors is an integer number (1062360).

Almost surely, 2^22023774 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22023774, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25496640).

22023774 is an abundant number, since it is smaller than the sum of its proper divisors (28969506).

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

22023774 is a wasteful number, since it uses less digits than its factorization.

22023774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1005 (or 1002 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 27.

The square root of 22023774 is about 4692.9493924397. The cubic root of 22023774 is about 280.3048295832.

Adding to 22023774 its reverse (47732022), we get a palindrome (69755796).

The spelling of 22023774 in words is "twenty-two million, twenty-three thousand, seven hundred seventy-four".