1989107296 has 48 divisors (see below), whose sum is σ = 4300466688. Its totient is φ = 898128000.

The previous prime is 1989107279. The next prime is 1989107311. The reversal of 1989107296 is 6927019891.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 34441 + ... + 71863.

It is an arithmetic number, because the mean of its divisors is an integer number (89593056).

Almost surely, 2^1989107296 is an apocalyptic number.

1989107296 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1989107296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2150233344).

1989107296 is an abundant number, since it is smaller than the sum of its proper divisors (2311359392).

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

1989107296 is a wasteful number, since it uses less digits than its factorization.

1989107296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37595 (or 37587 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 52.

The square root of 1989107296 is about 44599.4091440683. The cubic root of 1989107296 is about 1257.6295602498.

The spelling of 1989107296 in words is "one billion, nine hundred eighty-nine million, one hundred seven thousand, two hundred ninety-six".