43222530 has 96 divisors (see below), whose sum is σ = 118286784. Its totient is φ = 10046592.

The previous prime is 43222519. The next prime is 43222537. The reversal of 43222530 is 3522234.

It is a junction number, because it is equal to n+sod(n) for n = 43222497 and 43222506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43222537) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 140637 + ... + 140943.

It is an arithmetic number, because the mean of its divisors is an integer number (1232154).

Almost surely, 2^43222530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43222530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59143392).

43222530 is an abundant number, since it is smaller than the sum of its proper divisors (75064254).

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

43222530 is a wasteful number, since it uses less digits than its factorization.

43222530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368 (or 349 counting only the distinct ones).

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

The square root of 43222530 is about 6574.3843818262. The cubic root of 43222530 is about 350.9431162434.

Adding to 43222530 its reverse (3522234), we get a palindrome (46744764).

The spelling of 43222530 in words is "forty-three million, two hundred twenty-two thousand, five hundred thirty".