2193371136 has 260 divisors, whose sum is σ = 7159785864. Its totient is φ = 663552000.

The previous prime is 2193371111. The next prime is 2193371189. The reversal of 2193371136 is 6311733912.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 2193371136.

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, 3649236 + ... + 3649836.

Almost surely, 2^2193371136 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 2193371136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3579892932).

2193371136 is an abundant number, since it is smaller than the sum of its proper divisors (4966414728).

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

2193371136 is an equidigital number, since it uses as much as digits as its factorization.

2193371136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648 (or 617 counting only the distinct ones).

The product of its digits is 20412, while the sum is 36.

The square root of 2193371136 is about 46833.4403604946. The cubic root of 2193371136 is about 1299.2838532918.

The spelling of 2193371136 in words is "two billion, one hundred ninety-three million, three hundred seventy-one thousand, one hundred thirty-six".