2805421142 has 4 divisors (see below), whose sum is σ = 4208131716. Its totient is φ = 1402710570.

The previous prime is 2805421139. The next prime is 2805421163. The reversal of 2805421142 is 2411245082.

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

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 as a sum of consecutive naturals, namely, 701355284 + ... + 701355287.

It is an arithmetic number, because the mean of its divisors is an integer number (1052032929).

Almost surely, 2^2805421142 is an apocalyptic number.

2805421142 is a deficient number, since it is larger than the sum of its proper divisors (1402710574).

2805421142 is a wasteful number, since it uses less digits than its factorization.

2805421142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1402710573.

The product of its (nonzero) digits is 5120, while the sum is 29.

The square root of 2805421142 is about 52966.2264277908. The cubic root of 2805421142 is about 1410.3687887343.

The spelling of 2805421142 in words is "two billion, eight hundred five million, four hundred twenty-one thousand, one hundred forty-two".