304141221 has 12 divisors (see below), whose sum is σ = 451188972. Its totient is φ = 197280576.

The previous prime is 304141219. The next prime is 304141247. The reversal of 304141221 is 122141403.

304141221 is a `hidden beast` number, since 30 + 414 + 1 + 221 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 273737025 + 30404196 = 16545^2 + 5514^2 .

It is not a de Polignac number, because 304141221 - 2¹ = 304141219 is a prime.

It is a super-2 number, since 2×304141221² = 185003764622741682, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 304141194 and 304141203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304141261) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 456336 + ... + 457001.

It is an arithmetic number, because the mean of its divisors is an integer number (37599081).

Almost surely, 2^304141221 is an apocalyptic number.

It is an amenable number.

304141221 is a deficient number, since it is larger than the sum of its proper divisors (147047751).

304141221 is a wasteful number, since it uses less digits than its factorization.

304141221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 913380 (or 913377 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 304141221 is about 17439.6450938659. The cubic root of 304141221 is about 672.4991839978.

Adding to 304141221 its reverse (122141403), we get a palindrome (426282624).

The spelling of 304141221 in words is "three hundred four million, one hundred forty-one thousand, two hundred twenty-one".