304401090491 has 2 divisors, whose sum is σ = 304401090492. Its totient is φ = 304401090490.

The previous prime is 304401090473. The next prime is 304401090533. The reversal of 304401090491 is 194090104403.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-304401090491 is a prime.

It is not a weakly prime, because it can be changed into another prime (304401090401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152200545245 + 152200545246.

It is an arithmetic number, because the mean of its divisors is an integer number (152200545246).

Almost surely, 2^304401090491 is an apocalyptic number.

304401090491 is a deficient number, since it is larger than the sum of its proper divisors (1).

304401090491 is an equidigital number, since it uses as much as digits as its factorization.

304401090491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 35.

Adding to 304401090491 its reverse (194090104403), we get a palindrome (498491194894).

The spelling of 304401090491 in words is "three hundred four billion, four hundred one million, ninety thousand, four hundred ninety-one".