519209404 has 48 divisors (see below), whose sum is σ = 1074318336. Its totient is φ = 214934400.

The previous prime is 519209399. The next prime is 519209407. The reversal of 519209404 is 404902915.

It is a self number, because there is not a number n which added to its sum of digits gives 519209404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (519209407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116049 + ... + 120439.

It is an arithmetic number, because the mean of its divisors is an integer number (22381632).

Almost surely, 2^519209404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 519209404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (537159168).

519209404 is an abundant number, since it is smaller than the sum of its proper divisors (555108932).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

519209404 is a wasteful number, since it uses less digits than its factorization.

519209404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4546 (or 4544 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 519209404 is about 22786.1669440035. The cubic root of 519209404 is about 803.7374104306.

The spelling of 519209404 in words is "five hundred nineteen million, two hundred nine thousand, four hundred four".