530857820 has 24 divisors (see below), whose sum is σ = 1121908704. Its totient is φ = 210989376.

The previous prime is 530857757. The next prime is 530857823. The reversal of 530857820 is 28758035.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (530857823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81392 + ... + 87671.

It is an arithmetic number, because the mean of its divisors is an integer number (46746196).

Almost surely, 2^530857820 is an apocalyptic number.

It is an amenable number.

530857820 is an abundant number, since it is smaller than the sum of its proper divisors (591050884).

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

530857820 is a wasteful number, since it uses less digits than its factorization.

530857820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169229 (or 169227 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 38.

The square root of 530857820 is about 23040.3519938390. The cubic root of 530857820 is about 809.7036054215.

The spelling of 530857820 in words is "five hundred thirty million, eight hundred fifty-seven thousand, eight hundred twenty".