304040030 has 16 divisors (see below), whose sum is σ = 625453920. Its totient is φ = 104242272.

The previous prime is 304040027. The next prime is 304040081. The reversal of 304040030 is 30040403.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 304039987 and 304040014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2171645 + ... + 2171784.

It is an arithmetic number, because the mean of its divisors is an integer number (39090870).

Almost surely, 2^304040030 is an apocalyptic number.

304040030 is an abundant number, since it is smaller than the sum of its proper divisors (321413890).

304040030 is a wasteful number, since it uses less digits than its factorization.

304040030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4343443.

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 304040030 is about 17436.7436753541. The cubic root of 304040030 is about 672.4245931951.

Adding to 304040030 its reverse (30040403), we get a palindrome (334080433).

The spelling of 304040030 in words is "three hundred four million, forty thousand, thirty".