524404 has 6 divisors (see below), whose sum is σ = 917714. Its totient is φ = 262200.

The previous prime is 524389. The next prime is 524411. The reversal of 524404 is 404425.

It can be written as a sum of positive squares in only one way, i.e., 435600 + 88804 = 660^2 + 298^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65547 + ... + 65554.

2⁵²⁴⁴⁰⁴ is an apocalyptic number.

It is an amenable number.

524404 is a deficient number, since it is larger than the sum of its proper divisors (393310).

524404 is a wasteful number, since it uses less digits than its factorization.

524404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131105 (or 131103 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 524404 is about 724.1574414449. The cubic root of 524404 is about 80.6408936477.

Adding to 524404 its reverse (404425), we get a palindrome (928829).

The spelling of 524404 in words is "five hundred twenty-four thousand, four hundred four".