468488309 has 2 divisors, whose sum is σ = 468488310. Its totient is φ = 468488308.

The previous prime is 468488303. The next prime is 468488323. The reversal of 468488309 is 903884864.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 281400625 + 187087684 = 16775^2 + 13678^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-468488309 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (468488303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 234244154 + 234244155.

It is an arithmetic number, because the mean of its divisors is an integer number (234244155).

Almost surely, 2^468488309 is an apocalyptic number.

It is an amenable number.

468488309 is a deficient number, since it is larger than the sum of its proper divisors (1).

468488309 is an equidigital number, since it uses as much as digits as its factorization.

468488309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1327104, while the sum is 50.

The square root of 468488309 is about 21644.5907561220. The cubic root of 468488309 is about 776.6635422847.

The spelling of 468488309 in words is "four hundred sixty-eight million, four hundred eighty-eight thousand, three hundred nine".