305630605543242 has 64 divisors (see below), whose sum is σ = 713831269459968. Its totient is φ = 85435928760000.

The previous prime is 305630605543199. The next prime is 305630605543243. The reversal of 305630605543242 is 242345506036503.

It is a junction number, because it is equal to n+sod(n) for n = 305630605543191 and 305630605543200.

It is not an unprimeable number, because it can be changed into a prime (305630605543243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 390799509 + ... + 391580792.

It is an arithmetic number, because the mean of its divisors is an integer number (11153613585312).

Almost surely, 2^{305630605543242} is an apocalyptic number.

305630605543242 is an abundant number, since it is smaller than the sum of its proper divisors (408200663916726).

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

305630605543242 is a wasteful number, since it uses less digits than its factorization.

305630605543242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 782380515.

The product of its (nonzero) digits is 7776000, while the sum is 48.

The spelling of 305630605543242 in words is "three hundred five trillion, six hundred thirty billion, six hundred five million, five hundred forty-three thousand, two hundred forty-two".