840382774 has 32 divisors (see below), whose sum is σ = 1573468416. Its totient is φ = 327037920.

The previous prime is 840382759. The next prime is 840382783. The reversal of 840382774 is 477283048.

840382774 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 840382774.

It is a congruent number.

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, 153309 + ... + 158695.

It is an arithmetic number, because the mean of its divisors is an integer number (49170888).

Almost surely, 2^840382774 is an apocalyptic number.

840382774 is a deficient number, since it is larger than the sum of its proper divisors (733085642).

840382774 is a wasteful number, since it uses less digits than its factorization.

840382774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6420.

The product of its (nonzero) digits is 301056, while the sum is 43.

The square root of 840382774 is about 28989.3562191367. The cubic root of 840382774 is about 943.6820926008.

The spelling of 840382774 in words is "eight hundred forty million, three hundred eighty-two thousand, seven hundred seventy-four".