2840674349 has 4 divisors (see below), whose sum is σ = 2841045564. Its totient is φ = 2840303136.

The previous prime is 2840674307. The next prime is 2840674351. The reversal of 2840674349 is 9434760482.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 69388900 + 2771285449 = 8330^2 + 52643^2 .

It is a cyclic number.

It is not a de Polignac number, because 2840674349 - 2¹² = 2840670253 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 (2840674379) 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, 173882 + ... + 189515.

It is an arithmetic number, because the mean of its divisors is an integer number (710261391).

Almost surely, 2^2840674349 is an apocalyptic number.

It is an amenable number.

2840674349 is a deficient number, since it is larger than the sum of its proper divisors (371215).

2840674349 is an equidigital number, since it uses as much as digits as its factorization.

2840674349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371214.

The product of its (nonzero) digits is 1161216, while the sum is 47.

The square root of 2840674349 is about 53297.9769691121. The cubic root of 2840674349 is about 1416.2518273120.

The spelling of 2840674349 in words is "two billion, eight hundred forty million, six hundred seventy-four thousand, three hundred forty-nine".