998844444 has 36 divisors (see below), whose sum is σ = 2719077816. Its totient is φ = 307336608.

The previous prime is 998844433. The next prime is 998844487. The reversal of 998844444 is 444448899.

It is a tau number, because it is divible by the number of its divisors (36).

998844444 is a modest number, since divided by 44444 gives 9988 as remainder.

It is a nialpdrome in base 10.

It is a zygodrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1066674 + ... + 1067609.

Almost surely, 2^998844444 is an apocalyptic number.

It is an amenable number.

998844444 is an abundant number, since it is smaller than the sum of its proper divisors (1720233372).

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

998844444 is a wasteful number, since it uses less digits than its factorization.

998844444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2134306 (or 2134301 counting only the distinct ones).

The product of its digits is 5308416, while the sum is 54.

The square root of 998844444 is about 31604.5003757376. The cubic root of 998844444 is about 999.6146662036.

The spelling of 998844444 in words is "nine hundred ninety-eight million, eight hundred forty-four thousand, four hundred forty-four".