304320414220 has 48 divisors (see below), whose sum is σ = 656861123520. Its totient is φ = 118345100544.

The previous prime is 304320414217. The next prime is 304320414221. The reversal of 304320414220 is 22414023403.

It is a happy number.

It is a super-2 number, since 2×304320414220² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (304320414221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 783961 + ... + 1105999.

It is an arithmetic number, because the mean of its divisors is an integer number (13684606740).

Almost surely, 2^304320414220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 304320414220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (328430561760).

304320414220 is an abundant number, since it is smaller than the sum of its proper divisors (352540709300).

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

304320414220 is a wasteful number, since it uses less digits than its factorization.

304320414220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323362 (or 323360 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 304320414220 its reverse (22414023403), we get a palindrome (326734437623).

The spelling of 304320414220 in words is "three hundred four billion, three hundred twenty million, four hundred fourteen thousand, two hundred twenty".