573840 has 60 divisors (see below), whose sum is σ = 1929564. Its totient is φ = 152832.

The previous prime is 573829. The next prime is 573847. The reversal of 573840 is 48375.

It can be written as a sum of positive squares in 2 ways, for example, as 242064 + 331776 = 492^2 + 576^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (573847) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 322 + ... + 1118.

2⁵⁷³⁸⁴⁰ 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 573840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (964782).

573840 is an abundant number, since it is smaller than the sum of its proper divisors (1355724).

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

573840 is a wasteful number, since it uses less digits than its factorization.

573840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816 (or 807 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 573840 is about 757.5222769002. The cubic root of 573840 is about 83.0992184542.

It can be divided in two parts, 5738 and 40, that added together give a triangular number (5778 = T₁₀₇).

The spelling of 573840 in words is "five hundred seventy-three thousand, eight hundred forty".