304500030 has 64 divisors (see below), whose sum is σ = 752141376. Its totient is φ = 78848000.

The previous prime is 304499969. The next prime is 304500041. The reversal of 304500030 is 30005403.

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

It is a junction number, because it is equal to n+sod(n) for n = 304499982 and 304500009.

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, 345190 + ... + 346070.

It is an arithmetic number, because the mean of its divisors is an integer number (11752209).

Almost surely, 2^304500030 is an apocalyptic number.

304500030 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 304500030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (376070688).

304500030 is an abundant number, since it is smaller than the sum of its proper divisors (447641346).

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

304500030 is a wasteful number, since it uses less digits than its factorization.

304500030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1213.

The product of its (nonzero) digits is 180, while the sum is 15.

The square root of 304500030 is about 17449.9292262175. The cubic root of 304500030 is about 672.7635391886.

Adding to 304500030 its reverse (30005403), we get a palindrome (334505433).

The spelling of 304500030 in words is "three hundred four million, five hundred thousand, thirty".