302005 has 24 divisors (see below), whose sum is σ = 442080. Its totient is φ = 195840.

The previous prime is 301999. The next prime is 302009. The reversal of 302005 is 500203.

It is not a de Polignac number, because 302005 - 2³ = 301997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 301982 and 302000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (302009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15886 + ... + 15904.

It is an arithmetic number, because the mean of its divisors is an integer number (18420).

2³⁰²⁰⁰⁵ is an apocalyptic number.

It is an amenable number.

302005 is a deficient number, since it is larger than the sum of its proper divisors (140075).

302005 is a wasteful number, since it uses less digits than its factorization.

302005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69 (or 52 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 10.

The square root of 302005 is about 549.5498157583. The cubic root of 302005 is about 67.0920987822.

Adding to 302005 its reverse (500203), we get a palindrome (802208).

The spelling of 302005 in words is "three hundred two thousand, five".