998188000940 has 48 divisors (see below), whose sum is σ = 2257565294880. Its totient is φ = 368541358080.

The previous prime is 998188000921. The next prime is 998188000949. The reversal of 998188000940 is 49000881899.

It is not an unprimeable number, because it can be changed into a prime (998188000949) 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, 5098460 + ... + 5290620.

It is an arithmetic number, because the mean of its divisors is an integer number (47032610310).

Almost surely, 2^998188000940 is an apocalyptic number.

It is an amenable number.

998188000940 is an abundant number, since it is smaller than the sum of its proper divisors (1259377293940).

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

998188000940 is a wasteful number, since it uses less digits than its factorization.

998188000940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212162 (or 212160 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 56.

The spelling of 998188000940 in words is "nine hundred ninety-eight billion, one hundred eighty-eight million, nine hundred forty", and thus it is an aban number.