990916488 has 96 divisors (see below), whose sum is σ = 2792275200. Its totient is φ = 317116800.

The previous prime is 990916483. The next prime is 990916489. The reversal of 990916488 is 884619099.

It is not an unprimeable number, because it can be changed into a prime (990916483) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 290698 + ... + 294086.

It is an arithmetic number, because the mean of its divisors is an integer number (29086200).

Almost surely, 2^990916488 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 990916488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1396137600).

990916488 is an abundant number, since it is smaller than the sum of its proper divisors (1801358712).

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

990916488 is a wasteful number, since it uses less digits than its factorization.

990916488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3563 (or 3556 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 54.

The square root of 990916488 is about 31478.8260263943. The cubic root of 990916488 is about 996.9629483214.

The spelling of 990916488 in words is "nine hundred ninety million, nine hundred sixteen thousand, four hundred eighty-eight".