4015285 has 4 divisors (see below), whose sum is σ = 4818348. Its totient is φ = 3212224.

The previous prime is 4015283. The next prime is 4015303. The reversal of 4015285 is 5825104.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2553604 + 1461681 = 1598^2 + 1209^2 .

It is a cyclic number.

It is not a de Polignac number, because 4015285 - 2¹ = 4015283 is a prime.

It is a super-2 number, since 2×4015285² = 32245027262450, which contains 22 as substring.

It is a Duffinian number.

4015285 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4015283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 401524 + ... + 401533.

It is an arithmetic number, because the mean of its divisors is an integer number (1204587).

Almost surely, 2^4015285 is an apocalyptic number.

It is an amenable number.

4015285 is a deficient number, since it is larger than the sum of its proper divisors (803063).

4015285 is an equidigital number, since it uses as much as digits as its factorization.

4015285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 803062.

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 4015285 is about 2003.8176064702. The cubic root of 4015285 is about 158.9420434050.

The spelling of 4015285 in words is "four million, fifteen thousand, two hundred eighty-five".