22409530 has 32 divisors (see below), whose sum is σ = 47392128. Its totient is φ = 7521600.

The previous prime is 22409479. The next prime is 22409537. The reversal of 22409530 is 3590422.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22409495 and 22409504.

It is not an unprimeable number, because it can be changed into a prime (22409537) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6406 + ... + 9265.

It is an arithmetic number, because the mean of its divisors is an integer number (1481004).

Almost surely, 2^22409530 is an apocalyptic number.

22409530 is an abundant number, since it is smaller than the sum of its proper divisors (24982598).

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

22409530 is a wasteful number, since it uses less digits than its factorization.

22409530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15702.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 22409530 is about 4733.8705094246. The cubic root of 22409530 is about 281.9319202557.

Adding to 22409530 its reverse (3590422), we get a palindrome (25999952).

The spelling of 22409530 in words is "twenty-two million, four hundred nine thousand, five hundred thirty".