989344404 has 36 divisors (see below), whose sum is σ = 2519109684. Its totient is φ = 327372672.

The previous prime is 989344403. The next prime is 989344409. The reversal of 989344404 is 404443989.

989344404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 809516304 + 179828100 = 28452^2 + 13410^2 .

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

It is a super-2 number, since 2×989344404² = 1957604699452230432, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 989344404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (989344403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 95367 + ... + 105230.

It is an arithmetic number, because the mean of its divisors is an integer number (69975269).

Almost surely, 2^989344404 is an apocalyptic number.

It is an amenable number.

989344404 is an abundant number, since it is smaller than the sum of its proper divisors (1529765280).

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

989344404 is a wasteful number, since it uses less digits than its factorization.

989344404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200744 (or 200739 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 45.

The square root of 989344404 is about 31453.8456154410. The cubic root of 989344404 is about 996.4354437022.

The spelling of 989344404 in words is "nine hundred eighty-nine million, three hundred forty-four thousand, four hundred four".