1998383463 has 12 divisors (see below), whose sum is σ = 3038478040. Its totient is φ = 1262136816.

The previous prime is 1998383399. The next prime is 1998383477. The reversal of 1998383463 is 3643838991.

1998383463 is a `hidden beast` number, since 19 + 98 + 3 + 83 + 463 = 666.

It is not a de Polignac number, because 1998383463 - 2⁶ = 1998383399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1998383263) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 5843056 + ... + 5843397.

Almost surely, 2^1998383463 is an apocalyptic number.

1998383463 is a deficient number, since it is larger than the sum of its proper divisors (1040094577).

1998383463 is a wasteful number, since it uses less digits than its factorization.

1998383463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11686478 (or 11686475 counting only the distinct ones).

The product of its digits is 3359232, while the sum is 54.

The square root of 1998383463 is about 44703.2824633717. The cubic root of 1998383463 is about 1259.5815068988.

The spelling of 1998383463 in words is "one billion, nine hundred ninety-eight million, three hundred eighty-three thousand, four hundred sixty-three".