4085489405 has 8 divisors (see below), whose sum is σ = 5071642200. Its totient is φ = 3155688256.

The previous prime is 4085489389. The next prime is 4085489407. The reversal of 4085489405 is 5049845804.

It can be written as a sum of positive squares in 4 ways, for example, as 1184805241 + 2900684164 = 34421^2 + 53858^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 4085489405 - 2⁴ = 4085489389 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4085489405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4085489407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14087750 + ... + 14088039.

It is an arithmetic number, because the mean of its divisors is an integer number (633955275).

Almost surely, 2^4085489405 is an apocalyptic number.

It is an amenable number.

4085489405 is a deficient number, since it is larger than the sum of its proper divisors (986152795).

4085489405 is a wasteful number, since it uses less digits than its factorization.

4085489405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28175823.

The product of its (nonzero) digits is 921600, while the sum is 47.

The square root of 4085489405 is about 63917.8332314230. The cubic root of 4085489405 is about 1598.6302606612.

The spelling of 4085489405 in words is "four billion, eighty-five million, four hundred eighty-nine thousand, four hundred five".