530403442 has 4 divisors (see below), whose sum is σ = 795605166. Its totient is φ = 265201720.

The previous prime is 530403439. The next prime is 530403491. The reversal of 530403442 is 244304035.

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

It can be written as a sum of positive squares in only one way, i.e., 528126361 + 2277081 = 22981^2 + 1509^2 .

It is a super-2 number, since 2×530403442² = 562655622570894728, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132600859 + ... + 132600862.

Almost surely, 2^530403442 is an apocalyptic number.

530403442 is a deficient number, since it is larger than the sum of its proper divisors (265201724).

530403442 is a wasteful number, since it uses less digits than its factorization.

530403442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265201723.

The product of its (nonzero) digits is 5760, while the sum is 25.

The square root of 530403442 is about 23030.4893999237. The cubic root of 530403442 is about 809.4725225025.

Adding to 530403442 its reverse (244304035), we get a palindrome (774707477).

The spelling of 530403442 in words is "five hundred thirty million, four hundred three thousand, four hundred forty-two".