4644430 has 32 divisors (see below), whose sum is σ = 9782784. Its totient is φ = 1554336.

The previous prime is 4644403. The next prime is 4644433. The reversal of 4644430 is 344464.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 4644395 and 4644404.

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 (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2239 + ... + 3781.

It is an arithmetic number, because the mean of its divisors is an integer number (305712).

Almost surely, 2^4644430 is an apocalyptic number.

4644430 is an abundant number, since it is smaller than the sum of its proper divisors (5138354).

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

4644430 is a wasteful number, since it uses less digits than its factorization.

4644430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1600.

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 4644430 is about 2155.0939654688. The cubic root of 4644430 is about 166.8440821865.

Adding to 4644430 its reverse (344464), we get a palindrome (4988894).

The spelling of 4644430 in words is "four million, six hundred forty-four thousand, four hundred thirty".