304130720 has 48 divisors (see below), whose sum is σ = 756332640. Its totient is φ = 115248384.

The previous prime is 304130707. The next prime is 304130737. The reversal of 304130720 is 27031403.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 304130692 and 304130701.

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, 46982 + ... + 53061.

It is an arithmetic number, because the mean of its divisors is an integer number (15756930).

Almost surely, 2^304130720 is an apocalyptic number.

It is an amenable number.

304130720 is an abundant number, since it is smaller than the sum of its proper divisors (452201920).

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

304130720 is a wasteful number, since it uses less digits than its factorization.

304130720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100077 (or 100069 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 304130720 is about 17439.3440243605. The cubic root of 304130720 is about 672.4914441774.

The spelling of 304130720 in words is "three hundred four million, one hundred thirty thousand, seven hundred twenty".