2278742806 has 16 divisors (see below), whose sum is σ = 3431149200. Its totient is φ = 1135034208.

The previous prime is 2278742797. The next prime is 2278742833. The reversal of 2278742806 is 6082478722.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 1100340 + ... + 1102408.

It is an arithmetic number, because the mean of its divisors is an integer number (214446825).

Almost surely, 2^2278742806 is an apocalyptic number.

2278742806 is a deficient number, since it is larger than the sum of its proper divisors (1152406394).

2278742806 is a wasteful number, since it uses less digits than its factorization.

2278742806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3903.

The product of its (nonzero) digits is 602112, while the sum is 46.

The square root of 2278742806 is about 47736.1792145119. The cubic root of 2278742806 is about 1315.9269163474.

The spelling of 2278742806 in words is "two billion, two hundred seventy-eight million, seven hundred forty-two thousand, eight hundred six".