304122220 has 24 divisors (see below), whose sum is σ = 640156608. Its totient is φ = 121363200.

The previous prime is 304122199. The next prime is 304122241. The reversal of 304122220 is 22221403.

It is an interprime number because it is at equal distance from previous prime (304122199) and next prime (304122241).

It is a junction number, because it is equal to n+sod(n) for n = 304122194 and 304122203.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9021 + ... + 26260.

It is an arithmetic number, because the mean of its divisors is an integer number (26673192).

Almost surely, 2^304122220 is an apocalyptic number.

It is an amenable number.

304122220 is an abundant number, since it is smaller than the sum of its proper divisors (336034388).

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

304122220 is a wasteful number, since it uses less digits than its factorization.

304122220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35721 (or 35719 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 304122220 is about 17439.1003208308. The cubic root of 304122220 is about 672.4851790748.

Adding to 304122220 its reverse (22221403), we get a palindrome (326343623).

The spelling of 304122220 in words is "three hundred four million, one hundred twenty-two thousand, two hundred twenty".