22345530 has 32 divisors (see below), whose sum is σ = 54000000. Its totient is φ = 5917632.

The previous prime is 22345517. The next prime is 22345537. The reversal of 22345530 is 3554322.

It is a self number, because there is not a number n which added to its sum of digits gives 22345530.

It is not an unprimeable number, because it can be changed into a prime (22345537) 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, 1971 + ... + 6969.

It is an arithmetic number, because the mean of its divisors is an integer number (1687500).

Almost surely, 2^22345530 is an apocalyptic number.

22345530 is an abundant number, since it is smaller than the sum of its proper divisors (31654470).

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

22345530 is a wasteful number, since it uses less digits than its factorization.

22345530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5158.

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 22345530 is about 4727.1058799227. The cubic root of 22345530 is about 281.6632719422.

Adding to 22345530 its reverse (3554322), we get a palindrome (25899852).

It can be divided in two parts, 223 and 45530, that added together give a triangular number (45753 = T₃₀₂).

The spelling of 22345530 in words is "twenty-two million, three hundred forty-five thousand, five hundred thirty".