1996484420 has 144 divisors (see below), whose sum is σ = 5194309680. Its totient is φ = 640475136.

The previous prime is 1996484417. The next prime is 1996484459. The reversal of 1996484420 is 244846991.

It can be written as a sum of positive squares in 8 ways, for example, as 629407744 + 1367076676 = 25088^2 + 36974^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4881176 + ... + 4881584.

It is an arithmetic number, because the mean of its divisors is an integer number (36071595).

Almost surely, 2^1996484420 is an apocalyptic number.

1996484420 is a gapful number since it is divisible by the number (10) 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 1996484420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2597154840).

1996484420 is an abundant number, since it is smaller than the sum of its proper divisors (3197825260).

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

1996484420 is a wasteful number, since it uses less digits than its factorization.

1996484420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 742 (or 733 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 47.

The square root of 1996484420 is about 44682.0368828459. The cubic root of 1996484420 is about 1259.1823913827.

The spelling of 1996484420 in words is "one billion, nine hundred ninety-six million, four hundred eighty-four thousand, four hundred twenty".