530261820 has 288 divisors, whose sum is σ = 1856784384. Its totient is φ = 121305600.

The previous prime is 530261813. The next prime is 530261821. The reversal of 530261820 is 28162035.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (530261821) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3253059 + ... + 3253221.

It is an arithmetic number, because the mean of its divisors is an integer number (6447168).

Almost surely, 2^530261820 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 530261820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (928392192).

530261820 is an abundant number, since it is smaller than the sum of its proper divisors (1326522564).

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

530261820 is a wasteful number, since it uses less digits than its factorization.

530261820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273 (or 268 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 530261820 is about 23027.4145313798. The cubic root of 530261820 is about 809.4004708571.

The spelling of 530261820 in words is "five hundred thirty million, two hundred sixty-one thousand, eight hundred twenty".