2191832832 has 72 divisors (see below), whose sum is σ = 6666841216. Its totient is φ = 626236416.

The previous prime is 2191832813. The next prime is 2191832849. The reversal of 2191832832 is 2382381912.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198478 + ... + 209229.

Almost surely, 2^2191832832 is an apocalyptic number.

It is an amenable number.

2191832832 is an abundant number, since it is smaller than the sum of its proper divisors (4475008384).

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

2191832832 is an equidigital number, since it uses as much as digits as its factorization.

2191832832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407733 (or 407719 counting only the distinct ones).

The product of its digits is 41472, while the sum is 39.

The square root of 2191832832 is about 46817.0143430783. The cubic root of 2191832832 is about 1298.9800346700.

The spelling of 2191832832 in words is "two billion, one hundred ninety-one million, eight hundred thirty-two thousand, eight hundred thirty-two".