43421752 has 32 divisors (see below), whose sum is σ = 90284400. Its totient is φ = 19411200.

The previous prime is 43421743. The next prime is 43421753. The reversal of 43421752 is 25712434.

It is a self number, because there is not a number n which added to its sum of digits gives 43421752.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43421753) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1324 + ... + 9412.

Almost surely, 2^43421752 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43421752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45142200).

43421752 is an abundant number, since it is smaller than the sum of its proper divisors (46862648).

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

43421752 is a wasteful number, since it uses less digits than its factorization.

43421752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8167 (or 8163 counting only the distinct ones).

The product of its digits is 6720, while the sum is 28.

The square root of 43421752 is about 6589.5183435514. The cubic root of 43421752 is about 351.4814808805.

The spelling of 43421752 in words is "forty-three million, four hundred twenty-one thousand, seven hundred fifty-two".