2291170032 has 60 divisors (see below), whose sum is σ = 6561230104. Its totient is φ = 745960320.

The previous prime is 2291170009. The next prime is 2291170039. The reversal of 2291170032 is 2300711922.

It is a junction number, because it is equal to n+sod(n) for n = 2291169978 and 2291170005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2291170039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 178819 + ... + 191202.

Almost surely, 2^2291170032 is an apocalyptic number.

It is an amenable number.

2291170032 is an abundant number, since it is smaller than the sum of its proper divisors (4270060072).

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

2291170032 is a wasteful number, since it uses less digits than its factorization.

2291170032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370078 (or 370069 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 2291170032 is about 47866.1679268353. The cubic root of 2291170032 is about 1318.3147363669.

Adding to 2291170032 its reverse (2300711922), we get a palindrome (4591881954).

The spelling of 2291170032 in words is "two billion, two hundred ninety-one million, one hundred seventy thousand, thirty-two".