4640844 has 48 divisors (see below), whose sum is σ = 11854080. Its totient is φ = 1404480.

The previous prime is 4640843. The next prime is 4640863. The reversal of 4640844 is 4480464.

4640844 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (4640843) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10867 + ... + 11285.

It is an arithmetic number, because the mean of its divisors is an integer number (246960).

Almost surely, 2^4640844 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 4640844, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5927040).

4640844 is an abundant number, since it is smaller than the sum of its proper divisors (7213236).

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

4640844 is a wasteful number, since it uses less digits than its factorization.

4640844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510 (or 508 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 30.

The square root of 4640844 is about 2154.2618225276. The cubic root of 4640844 is about 166.8011305986.

The spelling of 4640844 in words is "four million, six hundred forty thousand, eight hundred forty-four".