4989444 has 12 divisors (see below), whose sum is σ = 11642064. Its totient is φ = 1663144.

The previous prime is 4989443. The next prime is 4989451. The reversal of 4989444 is 4449894.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 4989396 and 4989405.

It is not an unprimeable number, because it can be changed into a prime (4989443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 207882 + ... + 207905.

It is an arithmetic number, because the mean of its divisors is an integer number (970172).

Almost surely, 2^4989444 is an apocalyptic number.

It is an amenable number.

4989444 is an abundant number, since it is smaller than the sum of its proper divisors (6652620).

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

4989444 is a wasteful number, since it uses less digits than its factorization.

4989444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415794 (or 415792 counting only the distinct ones).

The product of its digits is 165888, while the sum is 42.

The square root of 4989444 is about 2233.7063370103. The cubic root of 4989444 is about 170.8771731760.

The spelling of 4989444 in words is "four million, nine hundred eighty-nine thousand, four hundred forty-four".