304000215 has 8 divisors (see below), whose sum is σ = 486400368. Its totient is φ = 162133440.

The previous prime is 304000211. The next prime is 304000217. The reversal of 304000215 is 512000403.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 304000215 - 2² = 304000211 is a prime.

It is a super-2 number, since 2×304000215² = 184832261440092450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 20266681 = 304000215 / (3 + 0 + 4 + 0 + 0 + 0 + 2 + 1 + 5).

It is a junction number, because it is equal to n+sod(n) for n = 304000194 and 304000203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304000211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10133326 + ... + 10133355.

It is an arithmetic number, because the mean of its divisors is an integer number (60800046).

Almost surely, 2^304000215 is an apocalyptic number.

304000215 is a deficient number, since it is larger than the sum of its proper divisors (182400153).

304000215 is a wasteful number, since it uses less digits than its factorization.

304000215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20266689.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 304000215 is about 17435.6019397095. The cubic root of 304000215 is about 672.3952398739.

Adding to 304000215 its reverse (512000403), we get a palindrome (816000618).

The spelling of 304000215 in words is "three hundred four million, two hundred fifteen", and thus it is an aban number.