4644432 has 80 divisors (see below), whose sum is σ = 14374080. Its totient is φ = 1427328.

The previous prime is 4644403. The next prime is 4644433. The reversal of 4644432 is 2344464.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 4644396 and 4644405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4644433) 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 15 ways as a sum of consecutive naturals, for example, 5203 + ... + 6029.

It is an arithmetic number, because the mean of its divisors is an integer number (179676).

Almost surely, 2^4644432 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 4644432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7187040).

4644432 is an abundant number, since it is smaller than the sum of its proper divisors (9729648).

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

4644432 is a wasteful number, since it uses less digits than its factorization.

4644432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857 (or 845 counting only the distinct ones).

The product of its digits is 9216, while the sum is 27.

The square root of 4644432 is about 2155.0944294856. The cubic root of 4644432 is about 166.8441061355.

Adding to 4644432 its reverse (2344464), we get a palindrome (6988896).

Subtracting from 4644432 its reverse (2344464), we obtain a cube (2299968 = 132³).

The spelling of 4644432 in words is "four million, six hundred forty-four thousand, four hundred thirty-two".