1998002304 has 96 divisors (see below), whose sum is σ = 6052129200. Its totient is φ = 630941184.

The previous prime is 1998002291. The next prime is 1998002309. The reversal of 1998002304 is 4032008991.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1998002309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23754 + ... + 67529.

Almost surely, 2^1998002304 is an apocalyptic number.

It is an amenable number.

1998002304 is an abundant number, since it is smaller than the sum of its proper divisors (4054126896).

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

1998002304 is a wasteful number, since it uses less digits than its factorization.

1998002304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91322 (or 91307 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 1998002304 is about 44699.0190496391. The cubic root of 1998002304 is about 1259.5014202748.

The spelling of 1998002304 in words is "one billion, nine hundred ninety-eight million, two thousand, three hundred four".