519404 has 12 divisors (see below), whose sum is σ = 919800. Its totient is φ = 256608.

The previous prime is 519391. The next prime is 519413. The reversal of 519404 is 404915.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 519404.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 374 + ... + 1085.

It is an arithmetic number, because the mean of its divisors is an integer number (76650).

2⁵¹⁹⁴⁰⁴ is an apocalyptic number.

It is an amenable number.

519404 is a deficient number, since it is larger than the sum of its proper divisors (400396).

519404 is a wasteful number, since it uses less digits than its factorization.

519404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1552 (or 1550 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 519404 is about 720.6968849662. The cubic root of 519404 is about 80.3837809581.

It can be divided in two parts, 5 and 19404, that multiplied together give a triangular number (97020 = T₄₄₀).

The spelling of 519404 in words is "five hundred nineteen thousand, four hundred four".