1608320419 has 2 divisors, whose sum is σ = 1608320420. Its totient is φ = 1608320418.

The previous prime is 1608320369. The next prime is 1608320491. The reversal of 1608320419 is 9140238061.

Together with next prime (1608320491) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1608320419 - 2⁷ = 1608320291 is a prime.

It is a super-2 number, since 2×1608320419² = 5173389140344671122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1608327419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 804160209 + 804160210.

It is an arithmetic number, because the mean of its divisors is an integer number (804160210).

Almost surely, 2^1608320419 is an apocalyptic number.

1608320419 is a deficient number, since it is larger than the sum of its proper divisors (1).

1608320419 is an equidigital number, since it uses as much as digits as its factorization.

1608320419 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 1608320419 is about 40103.8703743167. The cubic root of 1608320419 is about 1171.6310120919.

The spelling of 1608320419 in words is "one billion, six hundred eight million, three hundred twenty thousand, four hundred nineteen".