4451632432 has 20 divisors (see below), whose sum is σ = 9288502720. Its totient is φ = 2054599488.

The previous prime is 4451632421. The next prime is 4451632433. The reversal of 4451632432 is 2342361544.

It is not an unprimeable number, because it can be changed into a prime (4451632433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10700832 + ... + 10701247.

It is an arithmetic number, because the mean of its divisors is an integer number (464425136).

Almost surely, 2^4451632432 is an apocalyptic number.

It is an amenable number.

4451632432 is an abundant number, since it is smaller than the sum of its proper divisors (4836870288).

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

4451632432 is a wasteful number, since it uses less digits than its factorization.

4451632432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21402100 (or 21402094 counting only the distinct ones).

The product of its digits is 69120, while the sum is 34.

The square root of 4451632432 is about 66720.5547938564. The cubic root of 4451632432 is about 1645.0272605676.

Adding to 4451632432 its reverse (2342361544), we get a palindrome (6793993976).

The spelling of 4451632432 in words is "four billion, four hundred fifty-one million, six hundred thirty-two thousand, four hundred thirty-two".