989242488 has 192 divisors, whose sum is σ = 3016366080. Its totient is φ = 290822400.

The previous prime is 989242487. The next prime is 989242523. The reversal of 989242488 is 884242989.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (989242481) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 2988483 + ... + 2988813.

It is an arithmetic number, because the mean of its divisors is an integer number (15710240).

Almost surely, 2^989242488 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 989242488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1508183040).

989242488 is an abundant number, since it is smaller than the sum of its proper divisors (2027123592).

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

989242488 is a wasteful number, since it uses less digits than its factorization.

989242488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490 (or 483 counting only the distinct ones).

The product of its digits is 2654208, while the sum is 54.

The square root of 989242488 is about 31452.2254856473. The cubic root of 989242488 is about 996.4012270359.

The spelling of 989242488 in words is "nine hundred eighty-nine million, two hundred forty-two thousand, four hundred eighty-eight".