304040040361 has 2 divisors, whose sum is σ = 304040040362. Its totient is φ = 304040040360.

The previous prime is 304040040289. The next prime is 304040040389. The reversal of 304040040361 is 163040040403.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 212945331600 + 91094708761 = 461460^2 + 301819^2 .

It is a cyclic number.

It is not a de Polignac number, because 304040040361 - 2²⁵ = 304006485929 is a prime.

It is a super-2 number, since 2×304040040361² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (304040047361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152020020180 + 152020020181.

It is an arithmetic number, because the mean of its divisors is an integer number (152020020181).

Almost surely, 2^304040040361 is an apocalyptic number.

It is an amenable number.

304040040361 is a deficient number, since it is larger than the sum of its proper divisors (1).

304040040361 is an equidigital number, since it uses as much as digits as its factorization.

304040040361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 304040040361 its reverse (163040040403), we get a palindrome (467080080764).

The spelling of 304040040361 in words is "three hundred four billion, forty million, forty thousand, three hundred sixty-one".