988518642 has 8 divisors (see below), whose sum is σ = 1977037296. Its totient is φ = 329506212.

The previous prime is 988518611. The next prime is 988518647. The reversal of 988518642 is 246815889.

It is a sphenic number, since it is the product of 3 distinct primes.

988518642 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (988518647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82376548 + ... + 82376559.

It is an arithmetic number, because the mean of its divisors is an integer number (247129662).

Almost surely, 2^988518642 is an apocalyptic number.

988518642 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

988518642 is a wasteful number, since it uses less digits than its factorization.

988518642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164753112.

The product of its digits is 1105920, while the sum is 51.

The square root of 988518642 is about 31440.7163086339. The cubic root of 988518642 is about 996.1581396777.

The spelling of 988518642 in words is "nine hundred eighty-eight million, five hundred eighteen thousand, six hundred forty-two".