2805392238 has 16 divisors (see below), whose sum is σ = 6120855936. Its totient is φ = 850118840.

The previous prime is 2805392231. The next prime is 2805392243. The reversal of 2805392238 is 8322935082.

It is a self number, because there is not a number n which added to its sum of digits gives 2805392238.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2805392231) 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 7 ways as a sum of consecutive naturals, for example, 21252906 + ... + 21253037.

It is an arithmetic number, because the mean of its divisors is an integer number (382553496).

Almost surely, 2^2805392238 is an apocalyptic number.

2805392238 is an abundant number, since it is smaller than the sum of its proper divisors (3315463698).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2805392238 is a wasteful number, since it uses less digits than its factorization.

2805392238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42505959.

The product of its (nonzero) digits is 207360, while the sum is 42.

The square root of 2805392238 is about 52965.9535739705. The cubic root of 2805392238 is about 1410.3639450837.

The spelling of 2805392238 in words is "two billion, eight hundred five million, three hundred ninety-two thousand, two hundred thirty-eight".