304140030 has 64 divisors (see below), whose sum is σ = 813576960. Its totient is φ = 72313344.

The previous prime is 304140019. The next prime is 304140041. The reversal of 304140030 is 30041403.

It is an interprime number because it is at equal distance from previous prime (304140019) and next prime (304140041).

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 = 304139991 and 304140009.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6004 + ... + 25383.

It is an arithmetic number, because the mean of its divisors is an integer number (12712140).

Almost surely, 2^304140030 is an apocalyptic number.

304140030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

304140030 is an abundant number, since it is smaller than the sum of its proper divisors (509436930).

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

304140030 is a wasteful number, since it uses less digits than its factorization.

304140030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31433.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 304140030 is about 17439.6109474954. The cubic root of 304140030 is about 672.4983061736.

Adding to 304140030 its reverse (30041403), we get a palindrome (334181433).

It can be divided in two parts, 3041 and 40030, that added together give a triangular number (43071 = T₂₉₃).

The spelling of 304140030 in words is "three hundred four million, one hundred forty thousand, thirty".