304040330 has 64 divisors (see below), whose sum is σ = 614739456. Its totient is φ = 108222400.

The previous prime is 304040329. The next prime is 304040339. The reversal of 304040330 is 33040403.

It is a junction number, because it is equal to n+sod(n) for n = 304040299 and 304040308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304040339) 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 31 ways as a sum of consecutive naturals, for example, 705215 + ... + 705645.

It is an arithmetic number, because the mean of its divisors is an integer number (9605304).

Almost surely, 2^304040330 is an apocalyptic number.

304040330 is an abundant number, since it is smaller than the sum of its proper divisors (310699126).

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

304040330 is a wasteful number, since it uses less digits than its factorization.

304040330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524 (or 502 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 17.

The square root of 304040330 is about 17436.7522778756. The cubic root of 304040330 is about 672.4248143582.

Adding to 304040330 its reverse (33040403), we get a palindrome (337080733).

The spelling of 304040330 in words is "three hundred four million, forty thousand, three hundred thirty".