57404 has 12 divisors (see below), whose sum is σ = 102144. Its totient is φ = 28224.
The previous prime is 57397. The next prime is 57413. The reversal of 57404 is 40475.
It is a nialpdrome in base 9.
It is a zygodrome in base 2.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 389 + ... + 515.
It is an arithmetic number, because the mean of its divisors is an integer number (8512).
257404 is an apocalyptic number.
It is an amenable number.
57404 is a deficient number, since it is larger than the sum of its proper divisors (44740).
57404 is a wasteful number, since it uses less digits than its factorization.
57404 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 244 (or 242 counting only the distinct ones).
The product of its (nonzero) digits is 560, while the sum is 20.
The square root of 57404 is about 239.5913187075. The cubic root of 57404 is about 38.5757209933.
Adding to 57404 its reverse (40475), we get a palindrome (97879).
The spelling of 57404 in words is "fifty-seven thousand, four hundred four".
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