304256730 has 16 divisors (see below), whose sum is σ = 730216224. Its totient is φ = 81135120.

The previous prime is 304256713. The next prime is 304256731. The reversal of 304256730 is 37652403.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 10141891 = 304256730 / (3 + 0 + 4 + 2 + 5 + 6 + 7 + 3 + 0).

It is not an unprimeable number, because it can be changed into a prime (304256731) 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 7 ways as a sum of consecutive naturals, for example, 5070916 + ... + 5070975.

It is an arithmetic number, because the mean of its divisors is an integer number (45638514).

Almost surely, 2^304256730 is an apocalyptic number.

304256730 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

304256730 is an abundant number, since it is smaller than the sum of its proper divisors (425959494).

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

304256730 is a wasteful number, since it uses less digits than its factorization.

304256730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10141901.

The product of its (nonzero) digits is 15120, while the sum is 30.

The square root of 304256730 is about 17442.9564581237. The cubic root of 304256730 is about 672.5843087918.

The spelling of 304256730 in words is "three hundred four million, two hundred fifty-six thousand, seven hundred thirty".