530388 has 30 divisors (see below), whose sum is σ = 1387386. Its totient is φ = 176688.

The previous prime is 530359. The next prime is 530389. The reversal of 530388 is 883035.

It can be written as a sum of positive squares in only one way, i.e., 311364 + 219024 = 558^2 + 468^2 .

It is a super-2 number, since 2×530388² = 562622861088, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nialpdrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (530389) by changing a digit.

530388 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 495 + ... + 1142.

2⁵³⁰³⁸⁸ is an apocalyptic number.

It is an amenable number.

530388 is an abundant number, since it is smaller than the sum of its proper divisors (856998).

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

530388 is a wasteful number, since it uses less digits than its factorization.

530388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1653 (or 1642 counting only the distinct ones).

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

The square root of 530388 is about 728.2774196692. The cubic root of 530388 is about 80.9464666850.

It can be divided in two parts, 5303 and 88, that multiplied together give a palindrome (466664).

The spelling of 530388 in words is "five hundred thirty thousand, three hundred eighty-eight".