1996078464 has 160 divisors (see below), whose sum is σ = 6017959200. Its totient is φ = 656667648.

The previous prime is 1996078457. The next prime is 1996078489. The reversal of 1996078464 is 4648706991.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 1996078464.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 817854 + ... + 820290.

It is an arithmetic number, because the mean of its divisors is an integer number (37612245).

Almost surely, 2^1996078464 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 1996078464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3008979600).

1996078464 is an abundant number, since it is smaller than the sum of its proper divisors (4021880736).

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

1996078464 is an equidigital number, since it uses as much as digits as its factorization.

1996078464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2542 (or 2521 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The square root of 1996078464 is about 44677.4939315087. The cubic root of 1996078464 is about 1259.0970401369.

The spelling of 1996078464 in words is "one billion, nine hundred ninety-six million, seventy-eight thousand, four hundred sixty-four".