304770816 has 144 divisors (see below), whose sum is σ = 1030176000. Its totient is φ = 87063552.

The previous prime is 304770787. The next prime is 304770841. The reversal of 304770816 is 618077403.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45235 + ... + 51533.

It is an arithmetic number, because the mean of its divisors is an integer number (7154000).

Almost surely, 2^304770816 is an apocalyptic number.

304770816 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 304770816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (515088000).

304770816 is an abundant number, since it is smaller than the sum of its proper divisors (725405184).

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

304770816 is an equidigital number, since it uses as much as digits as its factorization.

304770816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6331 (or 6311 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 304770816 is about 17457.6864446581. The cubic root of 304770816 is about 672.9629053133.

The spelling of 304770816 in words is "three hundred four million, seven hundred seventy thousand, eight hundred sixteen".