840313834 has 8 divisors (see below), whose sum is σ = 1284253380. Its totient is φ = 412229376.

The previous prime is 840313823. The next prime is 840313841. The reversal of 840313834 is 438313048.

It is a happy number.

840313834 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 803892609 + 36421225 = 28353^2 + 6035^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×840313834² = 1412254679223559112, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 840313834.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3963639 + ... + 3963850.

Almost surely, 2^840313834 is an apocalyptic number.

840313834 is a deficient number, since it is larger than the sum of its proper divisors (443939546).

840313834 is a wasteful number, since it uses less digits than its factorization.

840313834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7927544.

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 840313834 is about 28988.1671376443. The cubic root of 840313834 is about 943.6562872081.

The spelling of 840313834 in words is "eight hundred forty million, three hundred thirteen thousand, eight hundred thirty-four".