4090985171 has 16 divisors (see below), whose sum is σ = 5300064000. Its totient is φ = 3066463008.

The previous prime is 4090985161. The next prime is 4090985177. The reversal of 4090985171 is 1715890904.

It is not a de Polignac number, because 4090985171 - 2¹⁰ = 4090984147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4090985177) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1181321 + ... + 1184778.

It is an arithmetic number, because the mean of its divisors is an integer number (331254000).

Almost surely, 2^4090985171 is an apocalyptic number.

4090985171 is a deficient number, since it is larger than the sum of its proper divisors (1209078829).

4090985171 is a wasteful number, since it uses less digits than its factorization.

4090985171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2366138.

The product of its (nonzero) digits is 90720, while the sum is 44.

The square root of 4090985171 is about 63960.8096493470. The cubic root of 4090985171 is about 1599.3467608094.

The spelling of 4090985171 in words is "four billion, ninety million, nine hundred eighty-five thousand, one hundred seventy-one".