4002285 has 32 divisors (see below), whose sum is σ = 7483392. Its totient is φ = 1788480.

The previous prime is 4002281. The next prime is 4002301. The reversal of 4002285 is 5822004.

It is not a de Polignac number, because 4002285 - 2² = 4002281 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

4002285 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4002281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4530 + ... + 5340.

It is an arithmetic number, because the mean of its divisors is an integer number (233856).

Almost surely, 2^4002285 is an apocalyptic number.

It is an amenable number.

4002285 is a deficient number, since it is larger than the sum of its proper divisors (3481107).

4002285 is a wasteful number, since it uses less digits than its factorization.

4002285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 873.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 4002285 is about 2000.5711684417. The cubic root of 4002285 is about 158.7703262047.

Adding to 4002285 its reverse (5822004), we get a palindrome (9824289).

The spelling of 4002285 in words is "four million, two thousand, two hundred eighty-five".