305132244140 has 24 divisors (see below), whose sum is σ = 643997709600. Its totient is φ = 121439564928.

The previous prime is 305132244097. The next prime is 305132244149. The reversal of 305132244140 is 41442231503.

It is not an unprimeable number, because it can be changed into a prime (305132244149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38329217 + ... + 38337176.

It is an arithmetic number, because the mean of its divisors is an integer number (26833237900).

Almost surely, 2^305132244140 is an apocalyptic number.

It is an amenable number.

305132244140 is an abundant number, since it is smaller than the sum of its proper divisors (338865465460).

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

305132244140 is a wasteful number, since it uses less digits than its factorization.

305132244140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76666601 (or 76666599 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 305132244140 its reverse (41442231503), we get a palindrome (346574475643).

The spelling of 305132244140 in words is "three hundred five billion, one hundred thirty-two million, two hundred forty-four thousand, one hundred forty".