573420 has 48 divisors (see below), whose sum is σ = 1693440. Its totient is φ = 144576.

The previous prime is 573409. The next prime is 573437. The reversal of 573420 is 24375.

It is a happy number.

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 15 ways as a sum of consecutive naturals, for example, 889 + ... + 1391.

It is an arithmetic number, because the mean of its divisors is an integer number (35280).

573420 is a Friedman number, since it can be written as 35*4^7-20, using all its digits and the basic arithmetic operations.

2⁵⁷³⁴²⁰ 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 573420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (846720).

573420 is an abundant number, since it is smaller than the sum of its proper divisors (1120020).

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

573420 is a wasteful number, since it uses less digits than its factorization.

573420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534 (or 532 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 573420 is about 757.2450065864. The cubic root of 573420 is about 83.0789397527.

Adding to 573420 its reverse (24375), we get a palindrome (597795).

The spelling of 573420 in words is "five hundred seventy-three thousand, four hundred twenty".