2840208323 has 4 divisors (see below), whose sum is σ = 2882599560. Its totient is φ = 2797817088.

The previous prime is 2840208311. The next prime is 2840208347. The reversal of 2840208323 is 3238020482.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-2840208323 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2840208323.

It is not an unprimeable number, because it can be changed into a prime (2840208353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21195518 + ... + 21195651.

It is an arithmetic number, because the mean of its divisors is an integer number (720649890).

Almost surely, 2^2840208323 is an apocalyptic number.

2840208323 is a deficient number, since it is larger than the sum of its proper divisors (42391237).

2840208323 is an equidigital number, since it uses as much as digits as its factorization.

2840208323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42391236.

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 2840208323 is about 53293.6048977736. The cubic root of 2840208323 is about 1416.1743754832.

The spelling of 2840208323 in words is "two billion, eight hundred forty million, two hundred eight thousand, three hundred twenty-three".