1989333484 has 12 divisors (see below), whose sum is σ = 3482111304. Its totient is φ = 994444544.

The previous prime is 1989333481. The next prime is 1989333491. The reversal of 1989333484 is 4843339891.

It is not an unprimeable number, because it can be changed into a prime (1989333481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34522 + ... + 71905.

It is an arithmetic number, because the mean of its divisors is an integer number (290175942).

Almost surely, 2^1989333484 is an apocalyptic number.

It is an amenable number.

1989333484 is a deficient number, since it is larger than the sum of its proper divisors (1492777820).

1989333484 is a wasteful number, since it uses less digits than its factorization.

1989333484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111104 (or 111102 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 52.

The square root of 1989333484 is about 44601.9448454885. The cubic root of 1989333484 is about 1257.6772281884.

The spelling of 1989333484 in words is "one billion, nine hundred eighty-nine million, three hundred thirty-three thousand, four hundred eighty-four".