409504419 has 12 divisors (see below), whose sum is σ = 607493536. Its totient is φ = 265624272.

The previous prime is 409504409. The next prime is 409504421. The reversal of 409504419 is 914405904.

It is a happy number.

It is not a de Polignac number, because 409504419 - 2⁵ = 409504387 is a prime.

It is a super-2 number, since 2×409504419² = 335387738361055122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (409504409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 614539 + ... + 615204.

Almost surely, 2^409504419 is an apocalyptic number.

409504419 is a deficient number, since it is larger than the sum of its proper divisors (197989117).

409504419 is a wasteful number, since it uses less digits than its factorization.

409504419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1229786 (or 1229783 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 409504419 is about 20236.2155305778. The cubic root of 409504419 is about 742.5964422562.

It can be divided in two parts, 40950 and 4419, that added together give a square (45369 = 213²).

The spelling of 409504419 in words is "four hundred nine million, five hundred four thousand, four hundred nineteen".