419619605 has 6 divisors (see below), whose sum is σ = 503598498. Its totient is φ = 335659040.

The previous prime is 419619601. The next prime is 419619637. The reversal of 419619605 is 506916914.

It can be written as a sum of positive squares in 3 ways, for example, as 9597604 + 410022001 = 3098^2 + 20249^2 .

It is not a de Polignac number, because 419619605 - 2² = 419619601 is a prime.

It is a super-2 number, since 2×419619605² = 352161225800712050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (419619601) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 41225 + ... + 50385.

It is an arithmetic number, because the mean of its divisors is an integer number (83933083).

Almost surely, 2^419619605 is an apocalyptic number.

It is an amenable number.

419619605 is a deficient number, since it is larger than the sum of its proper divisors (83978893).

419619605 is an frugal number, since it uses more digits than its factorization.

419619605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18327 (or 9166 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 419619605 is about 20484.6187418756. The cubic root of 419619605 is about 748.6610807791.

Multiplying 419619605 by its product of nonzero digits (58320), we get a square (24472215363600 = 4946940²).

The spelling of 419619605 in words is "four hundred nineteen million, six hundred nineteen thousand, six hundred five".