2809441814 has 4 divisors (see below), whose sum is σ = 4214162724. Its totient is φ = 1404720906.

The previous prime is 2809441801. The next prime is 2809441819. The reversal of 2809441814 is 4181449082.

It is a happy number.

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

It is a super-2 number, since 2×2809441814² = 15785926612503221192, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2809441819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 702360452 + ... + 702360455.

It is an arithmetic number, because the mean of its divisors is an integer number (1053540681).

Almost surely, 2^2809441814 is an apocalyptic number.

2809441814 is a deficient number, since it is larger than the sum of its proper divisors (1404720910).

2809441814 is a wasteful number, since it uses less digits than its factorization.

2809441814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1404720909.

The product of its (nonzero) digits is 73728, while the sum is 41.

The square root of 2809441814 is about 53004.1678927233. The cubic root of 2809441814 is about 1411.0422376458.

The spelling of 2809441814 in words is "two billion, eight hundred nine million, four hundred forty-one thousand, eight hundred fourteen".