530138928 has 80 divisors (see below), whose sum is σ = 1512153216. Its totient is φ = 158699520.

The previous prime is 530138927. The next prime is 530138929. The reversal of 530138928 is 829831035.

It is an interprime number because it is at equal distance from previous prime (530138927) and next prime (530138929).

It is not an unprimeable number, because it can be changed into a prime (530138927) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37776 + ... + 49872.

Almost surely, 2^530138928 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 530138928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (756076608).

530138928 is an abundant number, since it is smaller than the sum of its proper divisors (982014288).

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

530138928 is a wasteful number, since it uses less digits than its factorization.

530138928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12202 (or 12196 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 530138928 is about 23024.7459920843. The cubic root of 530138928 is about 809.3379378944.

The spelling of 530138928 in words is "five hundred thirty million, one hundred thirty-eight thousand, nine hundred twenty-eight".