594640 has 20 divisors (see below), whose sum is σ = 1382724. Its totient is φ = 237824.

The previous prime is 594637. The next prime is 594641. The reversal of 594640 is 46495.

It can be written as a sum of positive squares in 2 ways, for example, as 110224 + 484416 = 332^2 + 696^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 594599 and 594608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (594641) by changing a digit.

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, 3637 + ... + 3796.

2⁵⁹⁴⁶⁴⁰ is an apocalyptic number.

It is an amenable number.

594640 is an abundant number, since it is smaller than the sum of its proper divisors (788084).

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

594640 is a wasteful number, since it uses less digits than its factorization.

594640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7446 (or 7440 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 594640 is about 771.1290423788. The cubic root of 594640 is about 84.0913594061.

The spelling of 594640 in words is "five hundred ninety-four thousand, six hundred forty".