4639844 has 24 divisors (see below), whose sum is σ = 9380448. Its totient is φ = 1984640.

The previous prime is 4639823. The next prime is 4639849. The reversal of 4639844 is 4489364.

4639844 is nontrivially palindromic in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 4639798 and 4639807.

It is not an unprimeable number, because it can be changed into a prime (4639849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2354 + ... + 3849.

It is an arithmetic number, because the mean of its divisors is an integer number (390852).

Almost surely, 2^4639844 is an apocalyptic number.

4639844 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

4639844 is an abundant number, since it is smaller than the sum of its proper divisors (4740604).

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

4639844 is a wasteful number, since it uses less digits than its factorization.

4639844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6235 (or 6233 counting only the distinct ones).

The product of its digits is 82944, while the sum is 38.

The square root of 4639844 is about 2154.0297119585. The cubic root of 4639844 is about 166.7891490774.

The spelling of 4639844 in words is "four million, six hundred thirty-nine thousand, eight hundred forty-four".