305227345928 has 12 divisors (see below), whose sum is σ = 572304203565. Its totient is φ = 152612891648.

The previous prime is 305227345921. The next prime is 305227345961. The reversal of 305227345928 is 829543722503.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 303118515844 + 2108830084 = 550562^2 + 45922^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=390658.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (305227345921) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1464968 + ... + 1660296.

Almost surely, 2^305227345928 is an apocalyptic number.

It is an amenable number.

305227345928 is a deficient number, since it is larger than the sum of its proper divisors (267076857637).

305227345928 is an frugal number, since it uses more digits than its factorization.

305227345928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390664 (or 195331 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 50.

Multiplying 305227345928 by its sum of digits (50), we get a square (15261367296400 = 3906580²).

The spelling of 305227345928 in words is "three hundred five billion, two hundred twenty-seven million, three hundred forty-five thousand, nine hundred twenty-eight".