305520228242 has 16 divisors (see below), whose sum is σ = 474831499032. Its totient is φ = 147316135680.

The previous prime is 305520228239. The next prime is 305520228263. The reversal of 305520228242 is 242822025503.

It can be written as a sum of positive squares in 4 ways, for example, as 225369522361 + 80150705881 = 474731^2 + 283109^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18260009 + ... + 18276732.

Almost surely, 2^305520228242 is an apocalyptic number.

305520228242 is a deficient number, since it is larger than the sum of its proper divisors (169311270790).

305520228242 is a wasteful number, since it uses less digits than its factorization.

305520228242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36536893.

The product of its (nonzero) digits is 76800, while the sum is 35.

The spelling of 305520228242 in words is "three hundred five billion, five hundred twenty million, two hundred twenty-eight thousand, two hundred forty-two".