989787140 has 24 divisors (see below), whose sum is σ = 2187951360. Its totient is φ = 375077088.

The previous prime is 989787133. The next prime is 989787151. The reversal of 989787140 is 41787989.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1301972 + ... + 1302731.

It is an arithmetic number, because the mean of its divisors is an integer number (91164640).

Almost surely, 2^989787140 is an apocalyptic number.

It is an amenable number.

989787140 is an abundant number, since it is smaller than the sum of its proper divisors (1198164220).

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

989787140 is a wasteful number, since it uses less digits than its factorization.

989787140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2604731 (or 2604729 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 53.

The square root of 989787140 is about 31460.8826958177. The cubic root of 989787140 is about 996.5840579598.

The spelling of 989787140 in words is "nine hundred eighty-nine million, seven hundred eighty-seven thousand, one hundred forty".