530342021 has 8 divisors (see below), whose sum is σ = 579528000. Its totient is φ = 481318240.

The previous prime is 530341997. The next prime is 530342063. The reversal of 530342021 is 120243035.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-530342021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 530341984 and 530342002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (530342621) 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, 33656 + ... + 46833.

It is an arithmetic number, because the mean of its divisors is an integer number (72441000).

Almost surely, 2^530342021 is an apocalyptic number.

It is an amenable number.

530342021 is a deficient number, since it is larger than the sum of its proper divisors (49185979).

530342021 is a wasteful number, since it uses less digits than its factorization.

530342021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81099.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 530342021 is about 23029.1558898714. The cubic root of 530342021 is about 809.4412755138.

Adding to 530342021 its reverse (120243035), we get a palindrome (650585056).

It can be divided in two parts, 53034 and 2021, that added together give a palindrome (55055).

The spelling of 530342021 in words is "five hundred thirty million, three hundred forty-two thousand, twenty-one".