304002225 has 18 divisors (see below), whose sum is σ = 544502166. Its totient is φ = 162134400.

The previous prime is 304002203. The next prime is 304002227. The reversal of 304002225 is 522200403.

It can be written as a sum of positive squares in 3 ways, for example, as 40297104 + 263705121 = 6348^2 + 16239^2 .

It is not a de Polignac number, because 304002225 - 2²¹ = 301905073 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 304002198 and 304002207.

It is not an unprimeable number, because it can be changed into a prime (304002227) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 675336 + ... + 675785.

Almost surely, 2^304002225 is an apocalyptic number.

It is an amenable number.

304002225 is a deficient number, since it is larger than the sum of its proper divisors (240499941).

304002225 is a wasteful number, since it uses less digits than its factorization.

304002225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1351137 (or 1351129 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 304002225 is about 17435.6595802969. The cubic root of 304002225 is about 672.3967217934.

Adding to 304002225 its reverse (522200403), we get a palindrome (826202628).

The spelling of 304002225 in words is "three hundred four million, two thousand, two hundred twenty-five".