4085289252 has 36 divisors (see below), whose sum is σ = 11265495696. Its totient is φ = 1237966320.

The previous prime is 4085289191. The next prime is 4085289287. The reversal of 4085289252 is 2529825804.

4085289252 is a `hidden beast` number, since 40 + 85 + 289 + 252 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 4085289198 and 4085289207.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5157798 + ... + 5158589.

It is an arithmetic number, because the mean of its divisors is an integer number (312930436).

Almost surely, 2^4085289252 is an apocalyptic number.

It is an amenable number.

4085289252 is an abundant number, since it is smaller than the sum of its proper divisors (7180206444).

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

4085289252 is a wasteful number, since it uses less digits than its factorization.

4085289252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10316408 (or 10316403 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 45.

The square root of 4085289252 is about 63916.2675067936. The cubic root of 4085289252 is about 1598.6041539669.

The spelling of 4085289252 in words is "four billion, eighty-five million, two hundred eighty-nine thousand, two hundred fifty-two".