305274939 has 16 divisors (see below), whose sum is σ = 410012160. Its totient is φ = 202033440.

The previous prime is 305274923. The next prime is 305274947. The reversal of 305274939 is 939472503.

It is not a de Polignac number, because 305274939 - 2⁴ = 305274923 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 305274939.

It is not an unprimeable number, because it can be changed into a prime (305274979) 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 15 ways as a sum of consecutive naturals, for example, 387504 + ... + 388290.

It is an arithmetic number, because the mean of its divisors is an integer number (25625760).

Almost surely, 2^305274939 is an apocalyptic number.

305274939 is a deficient number, since it is larger than the sum of its proper divisors (104737221).

305274939 is a wasteful number, since it uses less digits than its factorization.

305274939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1570.

The product of its (nonzero) digits is 204120, while the sum is 42.

The square root of 305274939 is about 17472.1189041284. The cubic root of 305274939 is about 673.3337514021. Note that the first 3 decimals are identical.

The spelling of 305274939 in words is "three hundred five million, two hundred seventy-four thousand, nine hundred thirty-nine".