22390432 has 24 divisors (see below), whose sum is σ = 45505152. Its totient is φ = 10833600.

The previous prime is 22390427. The next prime is 22390447. The reversal of 22390432 is 23409322.

It is a junction number, because it is equal to n+sod(n) for n = 22390397 and 22390406.

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 3 ways as a sum of consecutive naturals, for example, 10294 + ... + 12277.

It is an arithmetic number, because the mean of its divisors is an integer number (1896048).

Almost surely, 2^22390432 is an apocalyptic number.

It is an amenable number.

22390432 is an abundant number, since it is smaller than the sum of its proper divisors (23114720).

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

22390432 is a wasteful number, since it uses less digits than its factorization.

22390432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22612 (or 22604 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 22390432 is about 4731.8529140285. The cubic root of 22390432 is about 281.8518075224.

Adding to 22390432 its reverse (23409322), we get a palindrome (45799754).

It can be divided in two parts, 22390 and 432, that added together give a palindrome (22822).

The spelling of 22390432 in words is "twenty-two million, three hundred ninety thousand, four hundred thirty-two".