305530028072 has 32 divisors (see below), whose sum is σ = 606195550080. Its totient is φ = 144064979520.

The previous prime is 305530028071. The next prime is 305530028077. The reversal of 305530028072 is 270820035503.

It is not an unprimeable number, because it can be changed into a prime (305530028071) 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 7 ways as a sum of consecutive naturals, for example, 11680523 + ... + 11706650.

It is an arithmetic number, because the mean of its divisors is an integer number (18943610940).

Almost surely, 2^305530028072 is an apocalyptic number.

It is an amenable number.

305530028072 is a deficient number, since it is larger than the sum of its proper divisors (300665522008).

305530028072 is a wasteful number, since it uses less digits than its factorization.

305530028072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23387273 (or 23387269 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 35.

The spelling of 305530028072 in words is "three hundred five billion, five hundred thirty million, twenty-eight thousand, seventy-two".