443422252 has 48 divisors (see below), whose sum is σ = 975421440. Its totient is φ = 171680832.

The previous prime is 443422249. The next prime is 443422261. The reversal of 443422252 is 252224344.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 443422252.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4149 + ... + 30067.

It is an arithmetic number, because the mean of its divisors is an integer number (20321280).

Almost surely, 2^443422252 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 443422252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (487710720).

443422252 is an abundant number, since it is smaller than the sum of its proper divisors (531999188).

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

443422252 is a wasteful number, since it uses less digits than its factorization.

443422252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25990 (or 25988 counting only the distinct ones).

The product of its digits is 15360, while the sum is 28.

The square root of 443422252 is about 21057.5936896883. The cubic root of 443422252 is about 762.5573201377.

Adding to 443422252 its reverse (252224344), we get a palindrome (695646596).

The spelling of 443422252 in words is "four hundred forty-three million, four hundred twenty-two thousand, two hundred fifty-two".