305421235434 has 96 divisors (see below), whose sum is σ = 767885878656. Its totient is φ = 85925283840.

The previous prime is 305421235417. The next prime is 305421235523. The reversal of 305421235434 is 434532124503.

305421235434 is a `hidden beast` number, since 3 + 0 + 5 + 4 + 212 + 3 + 5 + 434 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 25666174 + ... + 25678070.

It is an arithmetic number, because the mean of its divisors is an integer number (7998811236).

Almost surely, 2^305421235434 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 305421235434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (383942939328).

305421235434 is an abundant number, since it is smaller than the sum of its proper divisors (462464643222).

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

305421235434 is a wasteful number, since it uses less digits than its factorization.

305421235434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15020 (or 15017 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 36.

Adding to 305421235434 its reverse (434532124503), we get a palindrome (739953359937).

The spelling of 305421235434 in words is "three hundred five billion, four hundred twenty-one million, two hundred thirty-five thousand, four hundred thirty-four".