305213044420 has 24 divisors (see below), whose sum is σ = 641011258944. Its totient is φ = 122073052896.

The previous prime is 305213044393. The next prime is 305213044463. The reversal of 305213044420 is 24440312503.

It is a happy number.

It is a super-3 number, since 3×305213044420³ (a number of 35 digits) contains 333 as substring.

It is an unprimeable number.

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, 553194 + ... + 957313.

It is an arithmetic number, because the mean of its divisors is an integer number (26708802456).

Almost surely, 2^305213044420 is an apocalyptic number.

It is an amenable number.

305213044420 is an abundant number, since it is smaller than the sum of its proper divisors (335798214524).

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

305213044420 is a wasteful number, since it uses less digits than its factorization.

305213044420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1520619 (or 1520617 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 28.

Adding to 305213044420 its reverse (24440312503), we get a palindrome (329653356923).

The spelling of 305213044420 in words is "three hundred five billion, two hundred thirteen million, forty-four thousand, four hundred twenty".