305423420032 has 32 divisors (see below), whose sum is σ = 618435501300. Its totient is φ = 150208235520.

The previous prime is 305423420011. The next prime is 305423420041. The reversal of 305423420032 is 230024324503.

It can be written as a sum of positive squares in 2 ways, for example, as 201084083776 + 104339336256 = 448424^2 + 323016^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19550557 + ... + 19566172.

Almost surely, 2^305423420032 is an apocalyptic number.

305423420032 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

305423420032 is an abundant number, since it is smaller than the sum of its proper divisors (313012081268).

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

305423420032 is an equidigital number, since it uses as much as digits as its factorization.

305423420032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39116804 (or 39116792 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 28.

Adding to 305423420032 its reverse (230024324503), we get a palindrome (535447744535).

The spelling of 305423420032 in words is "three hundred five billion, four hundred twenty-three million, four hundred twenty thousand, thirty-two".