304213122 has 24 divisors (see below), whose sum is σ = 659719164. Its totient is φ = 101313504.

The previous prime is 304213099. The next prime is 304213139. The reversal of 304213122 is 221312403.

It can be written as a sum of positive squares in 2 ways, for example, as 302446881 + 1766241 = 17391^2 + 1329^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 304213095 and 304213104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14868 + ... + 28800.

Almost surely, 2^304213122 is an apocalyptic number.

304213122 is an abundant number, since it is smaller than the sum of its proper divisors (355506042).

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

304213122 is a wasteful number, since it uses less digits than its factorization.

304213122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15154 (or 15151 counting only the distinct ones).

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

The square root of 304213122 is about 17441.7063958777. The cubic root of 304213122 is about 672.5521742433.

Adding to 304213122 its reverse (221312403), we get a palindrome (525525525).

It can be divided in two parts, 3042 and 13122, that multiplied together give a square (39917124 = 6318²).

The spelling of 304213122 in words is "three hundred four million, two hundred thirteen thousand, one hundred twenty-two".