1996592128 has 44 divisors (see below), whose sum is σ = 4032581812. Its totient is φ = 987955200.

The previous prime is 1996592123. The next prime is 1996592153. The reversal of 1996592128 is 8212956991.

It can be written as a sum of positive squares in 2 ways, for example, as 782209024 + 1214383104 = 27968^2 + 34848^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1996592123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89278 + ... + 109378.

Almost surely, 2^1996592128 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1996592128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2016290906).

1996592128 is an abundant number, since it is smaller than the sum of its proper divisors (2035989684).

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

1996592128 is an equidigital number, since it uses as much as digits as its factorization.

1996592128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20218 (or 20200 counting only the distinct ones).

The product of its digits is 699840, while the sum is 52.

The square root of 1996592128 is about 44683.2421384125. The cubic root of 1996592128 is about 1259.2050347814.

The spelling of 1996592128 in words is "one billion, nine hundred ninety-six million, five hundred ninety-two thousand, one hundred twenty-eight".