305530332642 has 32 divisors (see below), whose sum is σ = 700858114560. Its totient is φ = 98558171280.

The previous prime is 305530332623. The next prime is 305530332649. The reversal of 305530332642 is 246233035503.

305530332642 is a `hidden beast` number, since 3 + 0 + 5 + 5 + 3 + 0 + 3 + 3 + 2 + 642 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 305530332597 and 305530332606.

It is not an unprimeable number, because it can be changed into a prime (305530332649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91255893 + ... + 91259240.

It is an arithmetic number, because the mean of its divisors is an integer number (21901816080).

Almost surely, 2^305530332642 is an apocalyptic number.

305530332642 is an abundant number, since it is smaller than the sum of its proper divisors (395327781918).

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

305530332642 is a wasteful number, since it uses less digits than its factorization.

305530332642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182515175 (or 182515169 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 36.

The spelling of 305530332642 in words is "three hundred five billion, five hundred thirty million, three hundred thirty-two thousand, six hundred forty-two".