4085684172 has 24 divisors (see below), whose sum is σ = 10592514800. Its totient is φ = 1361894688.

The previous prime is 4085684167. The next prime is 4085684177. The reversal of 4085684172 is 2714865804.

4085684172 is a `hidden beast` number, since 40 + 8 + 568 + 41 + 7 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (4085684167) and next prime (4085684177).

It is not an unprimeable number, because it can be changed into a prime (4085684177) 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, 18915097 + ... + 18915312.

Almost surely, 2^4085684172 is an apocalyptic number.

It is an amenable number.

4085684172 is an abundant number, since it is smaller than the sum of its proper divisors (6506830628).

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

4085684172 is a wasteful number, since it uses less digits than its factorization.

4085684172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37830422 (or 37830414 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 45.

The square root of 4085684172 is about 63919.3567865009. The cubic root of 4085684172 is about 1598.6556640210.

The spelling of 4085684172 in words is "four billion, eighty-five million, six hundred eighty-four thousand, one hundred seventy-two".