2291874643 has 4 divisors (see below), whose sum is σ = 2292225480. Its totient is φ = 2291523808.

The previous prime is 2291874619. The next prime is 2291874691. The reversal of 2291874643 is 3464781922.

It is a happy number.

2291874643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2291874643 - 2²¹ = 2289777491 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2291874593 and 2291874602.

It is not an unprimeable number, because it can be changed into a prime (2291872643) 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, 165430 + ... + 178747.

It is an arithmetic number, because the mean of its divisors is an integer number (573056370).

Almost surely, 2^2291874643 is an apocalyptic number.

2291874643 is a deficient number, since it is larger than the sum of its proper divisors (350837).

2291874643 is an equidigital number, since it uses as much as digits as its factorization.

2291874643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350836.

The product of its digits is 580608, while the sum is 46.

The square root of 2291874643 is about 47873.5275804907. The cubic root of 2291874643 is about 1318.4498643940.

The spelling of 2291874643 in words is "two billion, two hundred ninety-one million, eight hundred seventy-four thousand, six hundred forty-three".