1998348933 has 32 divisors (see below), whose sum is σ = 3146913792. Its totient is φ = 1104264000.

The previous prime is 1998348917. The next prime is 1998348943. The reversal of 1998348933 is 3398438991.

It is not a de Polignac number, because 1998348933 - 2⁴ = 1998348917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1998348943) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 80248 + ... + 102158.

It is an arithmetic number, because the mean of its divisors is an integer number (98341056).

Almost surely, 2^1998348933 is an apocalyptic number.

It is an amenable number.

1998348933 is a deficient number, since it is larger than the sum of its proper divisors (1148564859).

1998348933 is a wasteful number, since it uses less digits than its factorization.

1998348933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22065.

The product of its digits is 5038848, while the sum is 57.

The square root of 1998348933 is about 44702.8962484535. The cubic root of 1998348933 is about 1259.5742521016.

The spelling of 1998348933 in words is "one billion, nine hundred ninety-eight million, three hundred forty-eight thousand, nine hundred thirty-three".