988048640 has 72 divisors (see below), whose sum is σ = 2491308960. Its totient is φ = 374409216.

The previous prime is 988048637. The next prime is 988048679. The reversal of 988048640 is 46840889.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4007 + ... + 44633.

Almost surely, 2^988048640 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 988048640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1245654480).

988048640 is an abundant number, since it is smaller than the sum of its proper divisors (1503260320).

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

988048640 is a wasteful number, since it uses less digits than its factorization.

988048640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40667 (or 40653 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 47.

The square root of 988048640 is about 31433.2410037527. The cubic root of 988048640 is about 996.0002365553. Note that the first 3 decimals are identical.

The spelling of 988048640 in words is "nine hundred eighty-eight million, forty-eight thousand, six hundred forty".