43221234 has 24 divisors (see below), whose sum is σ = 100556208. Its totient is φ = 12348840.

The previous prime is 43221229. The next prime is 43221239. The reversal of 43221234 is 43212234.

It is an interprime number because it is at equal distance from previous prime (43221229) and next prime (43221239).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 43221234.

It is not an unprimeable number, because it can be changed into a prime (43221239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73212 + ... + 73799.

It is an arithmetic number, because the mean of its divisors is an integer number (4189842).

Almost surely, 2^43221234 is an apocalyptic number.

43221234 is an abundant number, since it is smaller than the sum of its proper divisors (57334974).

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

43221234 is a wasteful number, since it uses less digits than its factorization.

43221234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147030 (or 147023 counting only the distinct ones).

The product of its digits is 1152, while the sum is 21.

The square root of 43221234 is about 6574.2858167256. The cubic root of 43221234 is about 350.9396086065.

Adding to 43221234 its reverse (43212234), we get a palindrome (86433468).

The spelling of 43221234 in words is "forty-three million, two hundred twenty-one thousand, two hundred thirty-four".