304320030 has 128 divisors (see below), whose sum is σ = 868589568. Its totient is φ = 66794112.

The previous prime is 304320013. The next prime is 304320101. The reversal of 304320030 is 30023403.

304320030 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×304320030² = 185221361318401800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 304319991 and 304320009.

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 604759 + ... + 605261.

It is an arithmetic number, because the mean of its divisors is an integer number (6785856).

Almost surely, 2^304320030 is an apocalyptic number.

304320030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 304320030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (434294784).

304320030 is an abundant number, since it is smaller than the sum of its proper divisors (564269538).

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

304320030 is a wasteful number, since it uses less digits than its factorization.

304320030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630.

The product of its (nonzero) digits is 216, while the sum is 15.

The square root of 304320030 is about 17444.7708497418. The cubic root of 304320030 is about 672.6309488279.

Adding to 304320030 its reverse (30023403), we get a palindrome (334343433).

The spelling of 304320030 in words is "three hundred four million, three hundred twenty thousand, thirty".