43221960 has 192 divisors, whose sum is σ = 151632000. Its totient is φ = 10644480.

The previous prime is 43221953. The next prime is 43221961. The reversal of 43221960 is 6912234.

It is not an unprimeable number, because it can be changed into a prime (43221961) 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 47 ways as a sum of consecutive naturals, for example, 485596 + ... + 485684.

It is an arithmetic number, because the mean of its divisors is an integer number (789750).

Almost surely, 2^43221960 is an apocalyptic number.

43221960 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43221960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75816000).

43221960 is an abundant number, since it is smaller than the sum of its proper divisors (108410040).

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

43221960 is a wasteful number, since it uses less digits than its factorization.

43221960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196 (or 189 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 43221960 is about 6574.3410316168. The cubic root of 43221960 is about 350.9415735414.

The spelling of 43221960 in words is "forty-three million, two hundred twenty-one thousand, nine hundred sixty".