1996687584 has 240 divisors, whose sum is σ = 6158164320. Its totient is φ = 633830400.

The previous prime is 1996687579. The next prime is 1996687607. The reversal of 1996687584 is 4857866991.

It is a super-2 number, since 2×1996687584² = 7973522616199514112, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 7591837 + ... + 7592099.

It is an arithmetic number, because the mean of its divisors is an integer number (25659018).

Almost surely, 2^1996687584 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 1996687584, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3079082160).

1996687584 is an abundant number, since it is smaller than the sum of its proper divisors (4161476736).

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

1996687584 is a wasteful number, since it uses less digits than its factorization.

1996687584 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415 (or 398 counting only the distinct ones).

The product of its digits is 26127360, while the sum is 63.

The square root of 1996687584 is about 44684.3102665801. The cubic root of 1996687584 is about 1259.2251017677.

The spelling of 1996687584 in words is "one billion, nine hundred ninety-six million, six hundred eighty-seven thousand, five hundred eighty-four".