530403421 has 4 divisors (see below), whose sum is σ = 536363100. Its totient is φ = 524443744.

The previous prime is 530403403. The next prime is 530403431. The reversal of 530403421 is 124304035.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 269419396 + 260984025 = 16414^2 + 16155^2 .

It is a cyclic number.

It is not a de Polignac number, because 530403421 - 2²¹ = 528306269 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 530403392 and 530403401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (530403431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2979706 + ... + 2979883.

It is an arithmetic number, because the mean of its divisors is an integer number (134090775).

Almost surely, 2^530403421 is an apocalyptic number.

It is an amenable number.

530403421 is a deficient number, since it is larger than the sum of its proper divisors (5959679).

530403421 is an equidigital number, since it uses as much as digits as its factorization.

530403421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5959678.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 530403421 is about 23030.4889440064. The cubic root of 530403421 is about 809.4725118195.

Adding to 530403421 its reverse (124304035), we get a palindrome (654707456).

The spelling of 530403421 in words is "five hundred thirty million, four hundred three thousand, four hundred twenty-one".