4071285 has 12 divisors (see below), whose sum is σ = 7056972. Its totient is φ = 2171328.

The previous prime is 4071271. The next prime is 4071289. The reversal of 4071285 is 5821704.

It can be written as a sum of positive squares in 2 ways, for example, as 2414916 + 1656369 = 1554^2 + 1287^2 .

It is not a de Polignac number, because 4071285 - 2⁷ = 4071157 is a prime.

4071285 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4071289) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45192 + ... + 45281.

It is an arithmetic number, because the mean of its divisors is an integer number (588081).

Almost surely, 2^4071285 is an apocalyptic number.

4071285 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4071285 is a deficient number, since it is larger than the sum of its proper divisors (2985687).

4071285 is a wasteful number, since it uses less digits than its factorization.

4071285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90484 (or 90481 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 4071285 is about 2017.7425504757. The cubic root of 4071285 is about 159.6775406656.

Adding to 4071285 its reverse (5821704), we get a palindrome (9892989).

It can be divided in two parts, 4071 and 285, that added together give a square (4356 = 66²).

The spelling of 4071285 in words is "four million, seventy-one thousand, two hundred eighty-five".