989034144 has 96 divisors (see below), whose sum is σ = 3039555456. Its totient is φ = 275681280.

The previous prime is 989034139. The next prime is 989034157. The reversal of 989034144 is 441430989.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 989034096 and 989034105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9604 + ... + 45500.

It is an arithmetic number, because the mean of its divisors is an integer number (31662036).

Almost surely, 2^989034144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 989034144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1519777728).

989034144 is an abundant number, since it is smaller than the sum of its proper divisors (2050521312).

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

989034144 is a wasteful number, since it uses less digits than its factorization.

989034144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35958 (or 35950 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 989034144 is about 31448.9132403649. The cubic root of 989034144 is about 996.3312715581.

The spelling of 989034144 in words is "nine hundred eighty-nine million, thirty-four thousand, one hundred forty-four".