2170723260 has 48 divisors (see below), whose sum is σ = 6082223616. Its totient is φ = 578459712.

The previous prime is 2170723259. The next prime is 2170723309. The reversal of 2170723260 is 623270712.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

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, 80857 + ... + 104303.

It is an arithmetic number, because the mean of its divisors is an integer number (126712992).

Almost surely, 2^2170723260 is an apocalyptic number.

2170723260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2170723260 is an abundant number, since it is smaller than the sum of its proper divisors (3911500356).

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

2170723260 is a wasteful number, since it uses less digits than its factorization.

2170723260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25002 (or 25000 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 2170723260 is about 46591.0212380025. The cubic root of 2170723260 is about 1294.7964101071.

Adding to 2170723260 its reverse (623270712), we get a palindrome (2793993972).

The spelling of 2170723260 in words is "two billion, one hundred seventy million, seven hundred twenty-three thousand, two hundred sixty".