1998384748 has 12 divisors (see below), whose sum is σ = 3702889512. Its totient is φ = 940416320.

The previous prime is 1998384691. The next prime is 1998384767. The reversal of 1998384748 is 8474838991.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14693938 + ... + 14694073.

It is an arithmetic number, because the mean of its divisors is an integer number (308574126).

Almost surely, 2^1998384748 is an apocalyptic number.

It is an amenable number.

1998384748 is a deficient number, since it is larger than the sum of its proper divisors (1704504764).

1998384748 is a wasteful number, since it uses less digits than its factorization.

1998384748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29388032 (or 29388030 counting only the distinct ones).

The product of its digits is 13934592, while the sum is 61.

The square root of 1998384748 is about 44703.2968359158. The cubic root of 1998384748 is about 1259.5817768773.

The spelling of 1998384748 in words is "one billion, nine hundred ninety-eight million, three hundred eighty-four thousand, seven hundred forty-eight".