304321413 has 12 divisors (see below), whose sum is σ = 446003264. Its totient is φ = 184437000.

The previous prime is 304321399. The next prime is 304321417. The reversal of 304321413 is 314123403.

It is not a de Polignac number, because 304321413 - 2⁴ = 304321397 is a prime.

It is a super-2 number, since 2×304321413² = 185223044820633138, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 304321413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304321417) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 418813 + ... + 419538.

Almost surely, 2^304321413 is an apocalyptic number.

304321413 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

304321413 is a deficient number, since it is larger than the sum of its proper divisors (141681851).

304321413 is a wasteful number, since it uses less digits than its factorization.

304321413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838376 (or 838365 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 304321413 is about 17444.8104890824. The cubic root of 304321413 is about 672.6319677631.

Adding to 304321413 its reverse (314123403), we get a palindrome (618444816).

The spelling of 304321413 in words is "three hundred four million, three hundred twenty-one thousand, four hundred thirteen".