1996443399 has 8 divisors (see below), whose sum is σ = 2818508400. Its totient is φ = 1252670336.

The previous prime is 1996443377. The next prime is 1996443409. The reversal of 1996443399 is 9933446991.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1996443399 - 2⁵ = 1996443367 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1996443349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19572924 + ... + 19573025.

It is an arithmetic number, because the mean of its divisors is an integer number (352313550).

Almost surely, 2^1996443399 is an apocalyptic number.

1996443399 is a deficient number, since it is larger than the sum of its proper divisors (822065001).

1996443399 is a wasteful number, since it uses less digits than its factorization.

1996443399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39145969.

The product of its digits is 5668704, while the sum is 57.

The square root of 1996443399 is about 44681.5778481468. The cubic root of 1996443399 is about 1259.1737673444.

The spelling of 1996443399 in words is "one billion, nine hundred ninety-six million, four hundred forty-three thousand, three hundred ninety-nine".