4085790 has 16 divisors (see below), whose sum is σ = 9805968. Its totient is φ = 1089536.

The previous prime is 4085777. The next prime is 4085791. The reversal of 4085790 is 975804.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4085791) 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, 68067 + ... + 68126.

It is an arithmetic number, because the mean of its divisors is an integer number (612873).

Almost surely, 2^4085790 is an apocalyptic number.

4085790 is an abundant number, since it is smaller than the sum of its proper divisors (5720178).

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

4085790 is a wasteful number, since it uses less digits than its factorization.

4085790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136203.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 4085790 is about 2021.3337181178. Note that the first 3 decimals coincide. The cubic root of 4085790 is about 159.8669466774.

The spelling of 4085790 in words is "four million, eighty-five thousand, seven hundred ninety".