2805742042 has 16 divisors (see below), whose sum is σ = 4364335872. Its totient is φ = 1351699920.

The previous prime is 2805742001. The next prime is 2805742099. The reversal of 2805742042 is 2402475082.

It is a junction number, because it is equal to n+sod(n) for n = 2805741989 and 2805742007.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176434 + ... + 191677.

It is an arithmetic number, because the mean of its divisors is an integer number (272770992).

Almost surely, 2^2805742042 is an apocalyptic number.

2805742042 is a deficient number, since it is larger than the sum of its proper divisors (1558593830).

2805742042 is a wasteful number, since it uses less digits than its factorization.

2805742042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368253.

The product of its (nonzero) digits is 35840, while the sum is 34.

The square root of 2805742042 is about 52969.2556300351. The cubic root of 2805742042 is about 1410.4225620142.

The spelling of 2805742042 in words is "two billion, eight hundred five million, seven hundred forty-two thousand, forty-two".