305305042 has 16 divisors (see below), whose sum is σ = 529687872. Its totient is φ = 129268080.

The previous prime is 305304971. The next prime is 305305043. The reversal of 305305042 is 240503503.

It is a super-2 number, since 2×305305042² = 186422337341243528, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (305305043) 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 7 ways as a sum of consecutive naturals, for example, 130209 + ... + 132532.

It is an arithmetic number, because the mean of its divisors is an integer number (33105492).

Almost surely, 2^305305042 is an apocalyptic number.

305305042 is a deficient number, since it is larger than the sum of its proper divisors (224382830).

305305042 is a wasteful number, since it uses less digits than its factorization.

305305042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262833.

The product of its (nonzero) digits is 1800, while the sum is 22.

The square root of 305305042 is about 17472.9803410866. The cubic root of 305305042 is about 673.3558830362.

Adding to 305305042 its reverse (240503503), we get a palindrome (545808545).

The spelling of 305305042 in words is "three hundred five million, three hundred five thousand, forty-two".