4085285850 has 36 divisors (see below), whose sum is σ = 10975802526. Its totient is φ = 1089409440.

The previous prime is 4085285843. The next prime is 4085285851. The reversal of 4085285850 is 585825804.

4085285850 is a `hidden beast` number, since 40 + 8 + 5 + 28 + 585 + 0 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 3390383529 + 694902321 = 58227^2 + 26361^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 4085285796 and 4085285805.

It is not an unprimeable number, because it can be changed into a prime (4085285851) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4538757 + ... + 4539656.

Almost surely, 2^4085285850 is an apocalyptic number.

4085285850 is an abundant number, since it is smaller than the sum of its proper divisors (6890516676).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4085285850 is a wasteful number, since it uses less digits than its factorization.

4085285850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9078431 (or 9078423 counting only the distinct ones).

The product of its (nonzero) digits is 512000, while the sum is 45.

The square root of 4085285850 is about 63916.2408938448. The cubic root of 4085285850 is about 1598.6037102242.

The spelling of 4085285850 in words is "four billion, eighty-five million, two hundred eighty-five thousand, eight hundred fifty".