988439916 has 12 divisors (see below), whose sum is σ = 2306359832. Its totient is φ = 329479968.

The previous prime is 988439909. The next prime is 988439917. The reversal of 988439916 is 619934889.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (988439917) 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 3 ways as a sum of consecutive naturals, for example, 41184985 + ... + 41185008.

Almost surely, 2^988439916 is an apocalyptic number.

It is an amenable number.

988439916 is an abundant number, since it is smaller than the sum of its proper divisors (1317919916).

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

988439916 is a wasteful number, since it uses less digits than its factorization.

988439916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82370000 (or 82369998 counting only the distinct ones).

The product of its digits is 3359232, while the sum is 57.

The square root of 988439916 is about 31439.4643084134. The cubic root of 988439916 is about 996.1316941715.

The spelling of 988439916 in words is "nine hundred eighty-eight million, four hundred thirty-nine thousand, nine hundred sixteen".