304636225 has 12 divisors (see below), whose sum is σ = 389935360. Its totient is φ = 235846800.

The previous prime is 304636183. The next prime is 304636229. The reversal of 304636225 is 522636403.

It is a happy number.

It is not a de Polignac number, because 304636225 - 2¹⁵ = 304603457 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (304636229) 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, 195765 + ... + 197314.

Almost surely, 2^304636225 is an apocalyptic number.

It is an amenable number.

304636225 is a deficient number, since it is larger than the sum of its proper divisors (85299135).

304636225 is a wasteful number, since it uses less digits than its factorization.

304636225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393120 (or 393115 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 31.

The square root of 304636225 is about 17453.8312413063. The cubic root of 304636225 is about 672.8638274905.

The spelling of 304636225 in words is "three hundred four million, six hundred thirty-six thousand, two hundred twenty-five".