304212225 has 24 divisors (see below), whose sum is σ = 503594752. Its totient is φ = 162043200.

The previous prime is 304212217. The next prime is 304212253. The reversal of 304212225 is 522212403.

It is not a de Polignac number, because 304212225 - 2³ = 304212217 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 72279 + ... + 76371.

Almost surely, 2^304212225 is an apocalyptic number.

It is an amenable number.

304212225 is a deficient number, since it is larger than the sum of its proper divisors (199382527).

304212225 is a wasteful number, since it uses less digits than its factorization.

304212225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5097 (or 5092 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 304212225 is about 17441.6806816316. The cubic root of 304212225 is about 672.5515132156.

Adding to 304212225 its reverse (522212403), we get a palindrome (826424628).

The spelling of 304212225 in words is "three hundred four million, two hundred twelve thousand, two hundred twenty-five".