1998033 has 12 divisors (see below), whose sum is σ = 2787120. Its totient is φ = 1273096.

The previous prime is 1998023. The next prime is 1998041. The reversal of 1998033 is 3308991.

It is not a de Polignac number, because 1998033 - 2⁶ = 1997969 is a prime.

It is a Curzon number.

1998033 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1997985 and 1998003.

It is not an unprimeable number, because it can be changed into a prime (1998023) 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, 958 + ... + 2216.

It is an arithmetic number, because the mean of its divisors is an integer number (232260).

2^1998033 is an apocalyptic number.

It is an amenable number.

1998033 is a deficient number, since it is larger than the sum of its proper divisors (789087).

1998033 is a wasteful number, since it uses less digits than its factorization.

1998033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1308 (or 1285 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 1998033 is about 1413.5179517785. The cubic root of 1998033 is about 125.9507870294.

The spelling of 1998033 in words is "one million, nine hundred ninety-eight thousand, thirty-three".