2173726296 has 96 divisors (see below), whose sum is σ = 6735175200. Its totient is φ = 620421120.

The previous prime is 2173726279. The next prime is 2173726307. The reversal of 2173726296 is 6926273712.

2173726296 is a `hidden beast` number, since 2 + 17 + 3 + 7 + 2 + 629 + 6 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 708606 + ... + 711666.

It is an arithmetic number, because the mean of its divisors is an integer number (70158075).

Almost surely, 2^2173726296 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2173726296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3367587600).

2173726296 is an abundant number, since it is smaller than the sum of its proper divisors (4561448904).

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

2173726296 is a wasteful number, since it uses less digits than its factorization.

2173726296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4489 (or 4482 counting only the distinct ones).

The product of its digits is 381024, while the sum is 45.

The square root of 2173726296 is about 46623.2377254090. The cubic root of 2173726296 is about 1295.3932201830.

The spelling of 2173726296 in words is "two billion, one hundred seventy-three million, seven hundred twenty-six thousand, two hundred ninety-six".