22452330 has 64 divisors (see below), whose sum is σ = 55738368. Its totient is φ = 5785920.

The previous prime is 22452289. The next prime is 22452361. The reversal of 22452330 is 3325422.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22452297 and 22452306.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 176727 + ... + 176853.

It is an arithmetic number, because the mean of its divisors is an integer number (870912).

Almost surely, 2^22452330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22452330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27869184).

22452330 is an abundant number, since it is smaller than the sum of its proper divisors (33286038).

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

22452330 is a wasteful number, since it uses less digits than its factorization.

22452330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291.

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

The square root of 22452330 is about 4738.3889667270. The cubic root of 22452330 is about 282.1112935292. Note that the first 3 decimals are identical.

Adding to 22452330 its reverse (3325422), we get a palindrome (25777752).

The spelling of 22452330 in words is "twenty-two million, four hundred fifty-two thousand, three hundred thirty".