6642285 has 32 divisors (see below), whose sum is σ = 11950848. Its totient is φ = 3125760.

The previous prime is 6642283. The next prime is 6642289. The reversal of 6642285 is 5822466.

It is not a de Polignac number, because 6642285 - 2¹ = 6642283 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6642281) 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, 3745 + ... + 5225.

It is an arithmetic number, because the mean of its divisors is an integer number (373464).

Almost surely, 2^6642285 is an apocalyptic number.

6642285 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6642285 is a deficient number, since it is larger than the sum of its proper divisors (5308563).

6642285 is a wasteful number, since it uses less digits than its factorization.

6642285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1525.

The product of its digits is 23040, while the sum is 33.

The square root of 6642285 is about 2577.2630831950. The cubic root of 6642285 is about 187.9774852319.

The spelling of 6642285 in words is "six million, six hundred forty-two thousand, two hundred eighty-five".