304222131 has 6 divisors (see below), whose sum is σ = 439431980. Its totient is φ = 202814748.

The previous prime is 304222111. The next prime is 304222133. The reversal of 304222131 is 131222403.

304222131 is a `hidden beast` number, since 30 + 422 + 213 + 1 = 666.

It is not a de Polignac number, because 304222131 - 2⁵ = 304222099 is a prime.

It is a super-2 number, since 2×304222131² = 185102209980362322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (304222133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16901221 + ... + 16901238.

Almost surely, 2^304222131 is an apocalyptic number.

304222131 is a deficient number, since it is larger than the sum of its proper divisors (135209849).

304222131 is a wasteful number, since it uses less digits than its factorization.

304222131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33802465 (or 33802462 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 304222131 is about 17441.9646542470. The cubic root of 304222131 is about 672.5588131885.

Adding to 304222131 its reverse (131222403), we get a palindrome (435444534).

The spelling of 304222131 in words is "three hundred four million, two hundred twenty-two thousand, one hundred thirty-one".