4644243220 has 48 divisors (see below), whose sum is σ = 9889850880. Its totient is φ = 1831769856.

The previous prime is 4644243181. The next prime is 4644243223. The reversal of 4644243220 is 223424464.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4644243223) 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, 487624 + ... + 497056.

It is an arithmetic number, because the mean of its divisors is an integer number (206038560).

Almost surely, 2^4644243220 is an apocalyptic number.

It is an amenable number.

4644243220 is an abundant number, since it is smaller than the sum of its proper divisors (5245607660).

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

4644243220 is a wasteful number, since it uses less digits than its factorization.

4644243220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9784 (or 9782 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 31.

The square root of 4644243220 is about 68148.6846534840. The cubic root of 4644243220 is about 1668.4184556073.

Adding to 4644243220 its reverse (223424464), we get a palindrome (4867667684).

The spelling of 4644243220 in words is "four billion, six hundred forty-four million, two hundred forty-three thousand, two hundred twenty".