22303422 has 48 divisors (see below), whose sum is σ = 53408160. Its totient is φ = 6690816.

The previous prime is 22303409. The next prime is 22303433. The reversal of 22303422 is 22430322.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 22303395 and 22303404.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5454 + ... + 8622.

It is an arithmetic number, because the mean of its divisors is an integer number (1112670).

Almost surely, 2^22303422 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22303422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26704080).

22303422 is an abundant number, since it is smaller than the sum of its proper divisors (31104738).

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

22303422 is a wasteful number, since it uses less digits than its factorization.

22303422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3217 (or 3214 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 22303422 is about 4722.6498917451. The cubic root of 22303422 is about 281.4862382549.

Adding to 22303422 its reverse (22430322), we get a palindrome (44733744).

The spelling of 22303422 in words is "twenty-two million, three hundred three thousand, four hundred twenty-two".