988921080 has 192 divisors, whose sum is σ = 3791923200. Its totient is φ = 218730240.

The previous prime is 988921067. The next prime is 988921091. The reversal of 988921080 is 80129889.

It is a super-3 number, since 3×988921080³ (a number of 28 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 71791 + ... + 84449.

It is an arithmetic number, because the mean of its divisors is an integer number (19749600).

Almost surely, 2^988921080 is an apocalyptic number.

988921080 is a gapful number since it is divisible by the number (90) 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 988921080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1895961600).

988921080 is an abundant number, since it is smaller than the sum of its proper divisors (2803002120).

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

988921080 is a wasteful number, since it uses less digits than its factorization.

988921080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12714 (or 12707 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 45.

The square root of 988921080 is about 31447.1156069996. The cubic root of 988921080 is about 996.2933040480.

The spelling of 988921080 in words is "nine hundred eighty-eight million, nine hundred twenty-one thousand, eighty".