304100220 has 48 divisors (see below), whose sum is σ = 867555360. Its totient is φ = 79562496.

The previous prime is 304100213. The next prime is 304100221. The reversal of 304100220 is 22001403.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 304100196 and 304100205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304100221) 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, 44635 + ... + 50994.

It is an arithmetic number, because the mean of its divisors is an integer number (18074070).

Almost surely, 2^304100220 is an apocalyptic number.

304100220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

304100220 is an abundant number, since it is smaller than the sum of its proper divisors (563455140).

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

304100220 is a wasteful number, since it uses less digits than its factorization.

304100220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95694 (or 95692 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 304100220 is about 17438.4695429387. The cubic root of 304100220 is about 672.4689629729.

Adding to 304100220 its reverse (22001403), we get a palindrome (326101623).

The spelling of 304100220 in words is "three hundred four million, one hundred thousand, two hundred twenty".