4989944 has 8 divisors (see below), whose sum is σ = 9356160. Its totient is φ = 2494968.

The previous prime is 4989937. The next prime is 4989947. The reversal of 4989944 is 4499894.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×4989944² = 49799082246272, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4989947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311864 + ... + 311879.

It is an arithmetic number, because the mean of its divisors is an integer number (1169520).

Almost surely, 2^4989944 is an apocalyptic number.

It is an amenable number.

4989944 is a deficient number, since it is larger than the sum of its proper divisors (4366216).

4989944 is a wasteful number, since it uses less digits than its factorization.

4989944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623749 (or 623745 counting only the distinct ones).

The product of its digits is 373248, while the sum is 47.

The square root of 4989944 is about 2233.8182558122. The cubic root of 4989944 is about 170.8828809417.

The spelling of 4989944 in words is "four million, nine hundred eighty-nine thousand, nine hundred forty-four".