4639938 has 16 divisors (see below), whose sum is σ = 9455616. Its totient is φ = 1517360.

The previous prime is 4639931. The next prime is 4639939. The reversal of 4639938 is 8399364.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 4639938.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4639931) 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, 6978 + ... + 7613.

It is an arithmetic number, because the mean of its divisors is an integer number (590976).

Almost surely, 2^4639938 is an apocalyptic number.

4639938 is an abundant number, since it is smaller than the sum of its proper divisors (4815678).

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

4639938 is a wasteful number, since it uses less digits than its factorization.

4639938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14649.

The product of its digits is 139968, while the sum is 42.

The square root of 4639938 is about 2154.0515314170. The cubic root of 4639938 is about 166.7902754137.

It can be divided in two parts, 463 and 9938, that added together give a palindrome (10401).

The spelling of 4639938 in words is "four million, six hundred thirty-nine thousand, nine hundred thirty-eight".