4045285 has 8 divisors (see below), whose sum is σ = 4876920. Its totient is φ = 3221184.

The previous prime is 4045277. The next prime is 4045289. The reversal of 4045285 is 5825404.

It can be written as a sum of positive squares in 4 ways, for example, as 1896129 + 2149156 = 1377^2 + 1466^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4045285 - 2³ = 4045277 is a prime.

4045285 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4045289) 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, 622 + ... + 2911.

It is an arithmetic number, because the mean of its divisors is an integer number (609615).

Almost surely, 2^4045285 is an apocalyptic number.

It is an amenable number.

4045285 is a deficient number, since it is larger than the sum of its proper divisors (831635).

4045285 is a wasteful number, since it uses less digits than its factorization.

4045285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3767.

The product of its (nonzero) digits is 6400, while the sum is 28.

The square root of 4045285 is about 2011.2893874328. The cubic root of 4045285 is about 159.3369041331.

The spelling of 4045285 in words is "four million, forty-five thousand, two hundred eighty-five".