302943 has 4 divisors (see below), whose sum is σ = 403928. Its totient is φ = 201960.

The previous prime is 302941. The next prime is 302959. The reversal of 302943 is 349203.

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

It is not a de Polignac number, because 302943 - 2¹ = 302941 is a prime.

It is a super-2 number, since 2×302943² = 183548922498, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (302941) 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 3 ways as a sum of consecutive naturals, for example, 50488 + ... + 50493.

It is an arithmetic number, because the mean of its divisors is an integer number (100982).

2³⁰²⁹⁴³ is an apocalyptic number.

302943 is a deficient number, since it is larger than the sum of its proper divisors (100985).

302943 is a wasteful number, since it uses less digits than its factorization.

302943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100984.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 302943 is about 550.4025799358. The cubic root of 302943 is about 67.1614876408.

The spelling of 302943 in words is "three hundred two thousand, nine hundred forty-three".