4085290 has 16 divisors (see below), whose sum is σ = 8022240. Its totient is φ = 1485520.

The previous prime is 4085267. The next prime is 4085309. The reversal of 4085290 is 925804.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18460 + ... + 18679.

It is an arithmetic number, because the mean of its divisors is an integer number (501390).

Almost surely, 2^4085290 is an apocalyptic number.

4085290 is a deficient number, since it is larger than the sum of its proper divisors (3936950).

4085290 is a wasteful number, since it uses less digits than its factorization.

4085290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37157.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 4085290 is about 2021.2100336185. The cubic root of 4085290 is about 159.8604251533.

The spelling of 4085290 in words is "four million, eighty-five thousand, two hundred ninety".