4644220422 has 32 divisors (see below), whose sum is σ = 9593385984. Its totient is φ = 1497304800.

The previous prime is 4644220393. The next prime is 4644220433. The reversal of 4644220422 is 2240224464.

It is a self number, because there is not a number n which added to its sum of digits gives 4644220422.

It is a congruent number.

It is an unprimeable number.

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, 390508 + ... + 402224.

It is an arithmetic number, because the mean of its divisors is an integer number (299793312).

Almost surely, 2^4644220422 is an apocalyptic number.

4644220422 is an abundant number, since it is smaller than the sum of its proper divisors (4949165562).

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

4644220422 is a wasteful number, since it uses less digits than its factorization.

4644220422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13884.

The product of its (nonzero) digits is 24576, while the sum is 30.

The square root of 4644220422 is about 68148.5173866607. The cubic root of 4644220422 is about 1668.4157255848.

Adding to 4644220422 its reverse (2240224464), we get a palindrome (6884444886).

The spelling of 4644220422 in words is "four billion, six hundred forty-four million, two hundred twenty thousand, four hundred twenty-two".