305042274 has 24 divisors (see below), whose sum is σ = 685404720. Its totient is φ = 101680596.

The previous prime is 305042251. The next prime is 305042281. The reversal of 305042274 is 472240503.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 313344 + ... + 314315.

It is an arithmetic number, because the mean of its divisors is an integer number (28558530).

Almost surely, 2^305042274 is an apocalyptic number.

305042274 is an abundant number, since it is smaller than the sum of its proper divisors (380362446).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

305042274 is an equidigital number, since it uses as much as digits as its factorization.

305042274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627676 (or 627664 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 305042274 is about 17465.4594557372. The cubic root of 305042274 is about 673.1626477031.

Adding to 305042274 its reverse (472240503), we get a palindrome (777282777).

The spelling of 305042274 in words is "three hundred five million, forty-two thousand, two hundred seventy-four".