2805757434 has 32 divisors (see below), whose sum is σ = 6403535040. Its totient is φ = 909974736.

The previous prime is 2805757421. The next prime is 2805757457. The reversal of 2805757434 is 4347575082.

2805757434 is a `hidden beast` number, since 2 + 8 + 0 + 575 + 74 + 3 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 2805757434.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 700144 + ... + 704139.

It is an arithmetic number, because the mean of its divisors is an integer number (200110470).

Almost surely, 2^2805757434 is an apocalyptic number.

2805757434 is an abundant number, since it is smaller than the sum of its proper divisors (3597777606).

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

2805757434 is a wasteful number, since it uses less digits than its factorization.

2805757434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1404331 (or 1404325 counting only the distinct ones).

The product of its (nonzero) digits is 940800, while the sum is 45.

The square root of 2805757434 is about 52969.4009216642. The cubic root of 2805757434 is about 1410.4251411518.

It can be divided in two parts, 28057 and 57434, that added together give a triangular number (85491 = T₄₁₃).

The spelling of 2805757434 in words is "two billion, eight hundred five million, seven hundred fifty-seven thousand, four hundred thirty-four".