305042 has 8 divisors (see below), whose sum is σ = 468336. Its totient is φ = 148932.

The previous prime is 305033. The next prime is 305047. The reversal of 305042 is 240503.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (305047) 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, 1688 + ... + 1859.

It is an arithmetic number, because the mean of its divisors is an integer number (58542).

2³⁰⁵⁰⁴² is an apocalyptic number.

305042 is a deficient number, since it is larger than the sum of its proper divisors (163294).

305042 is a wasteful number, since it uses less digits than its factorization.

305042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3592.

The product of its (nonzero) digits is 120, while the sum is 14.

The square root of 305042 is about 552.3060745637. The cubic root of 305042 is about 67.3162446150.

Adding to 305042 its reverse (240503), we get a palindrome (545545).

The spelling of 305042 in words is "three hundred five thousand, forty-two".