305109034272 has 144 divisors (see below), whose sum is σ = 1023591808512. Its totient is φ = 84361927680.

The previous prime is 305109034247. The next prime is 305109034289. The reversal of 305109034272 is 272430901503.

305109034272 is a `hidden beast` number, since 3 + 0 + 510 + 90 + 34 + 27 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2378533 + ... + 2503524.

It is an arithmetic number, because the mean of its divisors is an integer number (7108276448).

Almost surely, 2^305109034272 is an apocalyptic number.

305109034272 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

305109034272 is an abundant number, since it is smaller than the sum of its proper divisors (718482774240).

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

305109034272 is a wasteful number, since it uses less digits than its factorization.

305109034272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4882111 (or 4882100 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

Adding to 305109034272 its reverse (272430901503), we get a palindrome (577539935775).

The spelling of 305109034272 in words is "three hundred five billion, one hundred nine million, thirty-four thousand, two hundred seventy-two".