2805378422 has 32 divisors (see below), whose sum is σ = 5258663424. Its totient is φ = 1090454400.

The previous prime is 2805378409. The next prime is 2805378427. The reversal of 2805378422 is 2248735082.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2805378422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2805378427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45647 + ... + 87717.

It is an arithmetic number, because the mean of its divisors is an integer number (164333232).

Almost surely, 2^2805378422 is an apocalyptic number.

2805378422 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2805378422 is a deficient number, since it is larger than the sum of its proper divisors (2453285002).

2805378422 is a wasteful number, since it uses less digits than its factorization.

2805378422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42524.

The product of its (nonzero) digits is 215040, while the sum is 41.

The square root of 2805378422 is about 52965.8231504052. The cubic root of 2805378422 is about 1410.3616298257.

The spelling of 2805378422 in words is "two billion, eight hundred five million, three hundred seventy-eight thousand, four hundred twenty-two".