2196587808 has 96 divisors (see below), whose sum is σ = 6486016320. Its totient is φ = 732172608.

The previous prime is 2196587797. The next prime is 2196587821. The reversal of 2196587808 is 8087856912.

It is a tau number, because it is divible by the number of its divisors (96).

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54291 + ... + 85677.

It is an arithmetic number, because the mean of its divisors is an integer number (67562670).

Almost surely, 2^2196587808 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 2196587808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3243008160).

2196587808 is an abundant number, since it is smaller than the sum of its proper divisors (4289428512).

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

2196587808 is an frugal number, since it uses more digits than its factorization.

2196587808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31418 (or 31392 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 54.

The square root of 2196587808 is about 46867.7693943290. The cubic root of 2196587808 is about 1299.9186947178.

The spelling of 2196587808 in words is "two billion, one hundred ninety-six million, five hundred eighty-seven thousand, eight hundred eight".