304839380 has 24 divisors (see below), whose sum is σ = 640490760. Its totient is φ = 121873280.

The previous prime is 304839377. The next prime is 304839389. The reversal of 304839380 is 83938403.

It can be written as a sum of positive squares in 4 ways, for example, as 79959364 + 224880016 = 8942^2 + 14996^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304839389) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74426 + ... + 78414.

It is an arithmetic number, because the mean of its divisors is an integer number (26687115).

Almost surely, 2^304839380 is an apocalyptic number.

It is an amenable number.

304839380 is an abundant number, since it is smaller than the sum of its proper divisors (335651380).

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

304839380 is a wasteful number, since it uses less digits than its factorization.

304839380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7819 (or 7817 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 304839380 is about 17459.6500537668. The cubic root of 304839380 is about 673.0133668038.

The spelling of 304839380 in words is "three hundred four million, eight hundred thirty-nine thousand, three hundred eighty".