988709740 has 48 divisors (see below), whose sum is σ = 2174558400. Its totient is φ = 376893440.

The previous prime is 988709723. The next prime is 988709747. The reversal of 988709740 is 47907889.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (988709747) 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 15 ways as a sum of consecutive naturals, for example, 125436 + ... + 133084.

It is an arithmetic number, because the mean of its divisors is an integer number (45303300).

Almost surely, 2^988709740 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 988709740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1087279200).

988709740 is an abundant number, since it is smaller than the sum of its proper divisors (1185848660).

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

988709740 is a wasteful number, since it uses less digits than its factorization.

988709740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7962 (or 7960 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 52.

The square root of 988709740 is about 31443.7551828658. The cubic root of 988709740 is about 996.2223271581. Note that the first 3 decimals are identical.

The spelling of 988709740 in words is "nine hundred eighty-eight million, seven hundred nine thousand, seven hundred forty".