840765074 has 32 divisors (see below), whose sum is σ = 1334057472. Its totient is φ = 396864000.

The previous prime is 840765053. The next prime is 840765089. The reversal of 840765074 is 470567048.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 494594 + ... + 496290.

It is an arithmetic number, because the mean of its divisors is an integer number (41689296).

Almost surely, 2^840765074 is an apocalyptic number.

840765074 is a deficient number, since it is larger than the sum of its proper divisors (493292398).

840765074 is a wasteful number, since it uses less digits than its factorization.

840765074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1922.

The product of its (nonzero) digits is 188160, while the sum is 41.

The square root of 840765074 is about 28995.9492688203. The cubic root of 840765074 is about 943.8251682654.

The spelling of 840765074 in words is "eight hundred forty million, seven hundred sixty-five thousand, seventy-four".