405314219 has 2 divisors, whose sum is σ = 405314220. Its totient is φ = 405314218.

The previous prime is 405314201. The next prime is 405314263. The reversal of 405314219 is 912413504.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-405314219 is a prime.

It is a super-2 number, since 2×405314219² = 328559232247159922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 405314191 and 405314200.

It is not a weakly prime, because it can be changed into another prime (405314519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202657109 + 202657110.

It is an arithmetic number, because the mean of its divisors is an integer number (202657110).

Almost surely, 2^405314219 is an apocalyptic number.

405314219 is a deficient number, since it is larger than the sum of its proper divisors (1).

405314219 is an equidigital number, since it uses as much as digits as its factorization.

405314219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 405314219 is about 20132.4171176737. The cubic root of 405314219 is about 740.0549137481.

The spelling of 405314219 in words is "four hundred five million, three hundred fourteen thousand, two hundred nineteen".