22405332 has 24 divisors (see below), whose sum is σ = 55031200. Its totient is φ = 7075296.

The previous prime is 22405321. The next prime is 22405333. The reversal of 22405332 is 23350422.

It is a junction number, because it is equal to n+sod(n) for n = 22405299 and 22405308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22405333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48907 + ... + 49362.

Almost surely, 2^22405332 is an apocalyptic number.

It is an amenable number.

22405332 is an abundant number, since it is smaller than the sum of its proper divisors (32625868).

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

22405332 is a wasteful number, since it uses less digits than its factorization.

22405332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98295 (or 98293 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 22405332 is about 4733.4270882734. The cubic root of 22405332 is about 281.9143142920.

Adding to 22405332 its reverse (23350422), we get a palindrome (45755754).

The spelling of 22405332 in words is "twenty-two million, four hundred five thousand, three hundred thirty-two".