304272725 has 12 divisors (see below), whose sum is σ = 377540196. Its totient is φ = 243262080.

The previous prime is 304272721. The next prime is 304272739. The reversal of 304272725 is 527272403.

It can be written as a sum of positive squares in 6 ways, for example, as 18054001 + 286218724 = 4249^2 + 16918^2 .

It is not a de Polignac number, because 304272725 - 2² = 304272721 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 304272691 and 304272700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304272721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50999 + ... + 56651.

It is an arithmetic number, because the mean of its divisors is an integer number (31461683).

Almost surely, 2^304272725 is an apocalyptic number.

It is an amenable number.

304272725 is a deficient number, since it is larger than the sum of its proper divisors (73267471).

304272725 is a wasteful number, since it uses less digits than its factorization.

304272725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7816 (or 7811 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 32.

The square root of 304272725 is about 17443.4149466210. The cubic root of 304272725 is about 672.5960946691.

The spelling of 304272725 in words is "three hundred four million, two hundred seventy-two thousand, seven hundred twenty-five".