2813440189 has 4 divisors (see below), whose sum is σ = 3215360224. Its totient is φ = 2411520156.

The previous prime is 2813440183. The next prime is 2813440199. The reversal of 2813440189 is 9810443182.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2813440189 - 2²³ = 2805051581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2813440183) 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, 200960007 + ... + 200960020.

It is an arithmetic number, because the mean of its divisors is an integer number (803840056).

Almost surely, 2^2813440189 is an apocalyptic number.

It is an amenable number.

2813440189 is a deficient number, since it is larger than the sum of its proper divisors (401920035).

2813440189 is an equidigital number, since it uses as much as digits as its factorization.

2813440189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401920034.

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 2813440189 is about 53041.8720352138. The cubic root of 2813440189 is about 1411.7113149933.

The spelling of 2813440189 in words is "two billion, eight hundred thirteen million, four hundred forty thousand, one hundred eighty-nine".