304405013 has 8 divisors (see below), whose sum is σ = 337707360. Its totient is φ = 272040880.

The previous prime is 304405007. The next prime is 304405021. The reversal of 304405013 is 310504403.

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 304405013 - 2⁶ = 304404949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304402013) 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, 233870 + ... + 235167.

It is an arithmetic number, because the mean of its divisors is an integer number (42213420).

Almost surely, 2^304405013 is an apocalyptic number.

It is an amenable number.

304405013 is a deficient number, since it is larger than the sum of its proper divisors (33302347).

304405013 is a wasteful number, since it uses less digits than its factorization.

304405013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469107.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 304405013 is about 17447.2064526101. The cubic root of 304405013 is about 672.6935549334.

Adding to 304405013 its reverse (310504403), we get a palindrome (614909416).

It can be divided in two parts, 30440 and 5013, that added together give a palindrome (35453).

The spelling of 304405013 in words is "three hundred four million, four hundred five thousand, thirteen".