304013213 has 8 divisors (see below), whose sum is σ = 347696640. Its totient is φ = 260393040.

The previous prime is 304013209. The next prime is 304013219. The reversal of 304013213 is 312310403.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 304013213 - 2² = 304013209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 304013191 and 304013200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304013219) 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, 5018 + ... + 25163.

It is an arithmetic number, because the mean of its divisors is an integer number (43462080).

Almost surely, 2^304013213 is an apocalyptic number.

It is an amenable number.

304013213 is a deficient number, since it is larger than the sum of its proper divisors (43683427).

304013213 is a wasteful number, since it uses less digits than its factorization.

304013213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31627.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 304013213 is about 17435.9746788070. The cubic root of 304013213 is about 672.4048228373.

Adding to 304013213 its reverse (312310403), we get a palindrome (616323616).

The spelling of 304013213 in words is "three hundred four million, thirteen thousand, two hundred thirteen".