989331456 has 160 divisors (see below), whose sum is σ = 2868901200. Its totient is φ = 301989888.

The previous prime is 989331451. The next prime is 989331479. The reversal of 989331456 is 654133989.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (989331451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26738670 + ... + 26738706.

Almost surely, 2^989331456 is an apocalyptic number.

989331456 is a gapful number since it is divisible by the number (96) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 989331456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1434450600).

989331456 is an abundant number, since it is smaller than the sum of its proper divisors (1879569744).

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

989331456 is an frugal number, since it uses more digits than its factorization.

989331456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95 (or 59 counting only the distinct ones).

The product of its digits is 699840, while the sum is 48.

The square root of 989331456 is about 31453.6397893789. The cubic root of 989331456 is about 996.4310967487.

The spelling of 989331456 in words is "nine hundred eighty-nine million, three hundred thirty-one thousand, four hundred fifty-six".