840284613 has 24 divisors (see below), whose sum is σ = 1403857728. Its totient is φ = 474374592.

The previous prime is 840284593. The next prime is 840284639. The reversal of 840284613 is 316482048.

840284613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 840284613 - 2⁵ = 840284581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (840284663) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 75120 + ... + 85577.

It is an arithmetic number, because the mean of its divisors is an integer number (58494072).

Almost surely, 2^840284613 is an apocalyptic number.

840284613 is a gapful number since it is divisible by the number (83) formed by its first and last digit.

It is an amenable number.

840284613 is a deficient number, since it is larger than the sum of its proper divisors (563573115).

840284613 is a wasteful number, since it uses less digits than its factorization.

840284613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160793 (or 160790 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 840284613 is about 28987.6631172642. The cubic root of 840284613 is about 943.6453488742.

The spelling of 840284613 in words is "eight hundred forty million, two hundred eighty-four thousand, six hundred thirteen".