573640320 has 256 divisors, whose sum is σ = 2019012480. Its totient is φ = 137379840.

The previous prime is 573640297. The next prime is 573640357. The reversal of 573640320 is 23046375.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3315754 + ... + 3315926.

Almost surely, 2^573640320 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 573640320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1009506240).

573640320 is an abundant number, since it is smaller than the sum of its proper divisors (1445372160).

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

573640320 is a wasteful number, since it uses less digits than its factorization.

573640320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363 (or 351 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 30.

The square root of 573640320 is about 23950.7895485723. The cubic root of 573640320 is about 830.8957861438.

Adding to 573640320 its reverse (23046375), we get a palindrome (596686695).

It can be divided in two parts, 5736 and 40320, that added together give a triangular number (46056 = T₃₀₃).

The spelling of 573640320 in words is "five hundred seventy-three million, six hundred forty thousand, three hundred twenty".