859405441 has 4 divisors (see below), whose sum is σ = 875620692. Its totient is φ = 843190192.

The previous prime is 859405427. The next prime is 859405451. The reversal of 859405441 is 144504958.

859405441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 461003841 + 398401600 = 21471^2 + 19960^2 .

It is a cyclic number.

It is not a de Polignac number, because 859405441 - 2¹³ = 859397249 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 859405394 and 859405403.

It is not an unprimeable number, because it can be changed into a prime (859405451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8107546 + ... + 8107651.

It is an arithmetic number, because the mean of its divisors is an integer number (218905173).

Almost surely, 2^859405441 is an apocalyptic number.

It is an amenable number.

859405441 is a deficient number, since it is larger than the sum of its proper divisors (16215251).

859405441 is a wasteful number, since it uses less digits than its factorization.

859405441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16215250.

The product of its (nonzero) digits is 115200, while the sum is 40.

The square root of 859405441 is about 29315.6176977392. The cubic root of 859405441 is about 950.7493408203.

The spelling of 859405441 in words is "eight hundred fifty-nine million, four hundred five thousand, four hundred forty-one".