2173160440 has 128 divisors (see below), whose sum is σ = 5463936000. Its totient is φ = 771264000.

The previous prime is 2173160417. The next prime is 2173160461. The reversal of 2173160440 is 440613712.

2173160440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 2173160399 and 2173160408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3510451 + ... + 3511069.

It is an arithmetic number, because the mean of its divisors is an integer number (42687000).

Almost surely, 2^2173160440 is an apocalyptic number.

2173160440 is a gapful number since it is divisible by the number (20) 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 2173160440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2731968000).

2173160440 is an abundant number, since it is smaller than the sum of its proper divisors (3290775560).

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

2173160440 is a wasteful number, since it uses less digits than its factorization.

2173160440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821 (or 817 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 2173160440 is about 46617.1689402091. The cubic root of 2173160440 is about 1295.2808065148.

The spelling of 2173160440 in words is "two billion, one hundred seventy-three million, one hundred sixty thousand, four hundred forty".