2291164832 has 48 divisors (see below), whose sum is σ = 4971601152. Its totient is φ = 1030686720.

The previous prime is 2291164793. The next prime is 2291164861. The reversal of 2291164832 is 2384611922.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 593 + ... + 67695.

It is an arithmetic number, because the mean of its divisors is an integer number (103575024).

Almost surely, 2^2291164832 is an apocalyptic number.

2291164832 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2291164832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2485800576).

2291164832 is an abundant number, since it is smaller than the sum of its proper divisors (2680436320).

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

2291164832 is a wasteful number, since it uses less digits than its factorization.

2291164832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67221 (or 67213 counting only the distinct ones).

The product of its digits is 41472, while the sum is 38.

The square root of 2291164832 is about 47866.1136086898. The cubic root of 2291164832 is about 1318.3137390246.

The spelling of 2291164832 in words is "two billion, two hundred ninety-one million, one hundred sixty-four thousand, eight hundred thirty-two".