523332442 has 4 divisors (see below), whose sum is σ = 784998666. Its totient is φ = 261666220.

The previous prime is 523332361. The next prime is 523332443. The reversal of 523332442 is 244233325.

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., 522168201 + 1164241 = 22851^2 + 1079^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 523332442.

It is not an unprimeable number, because it can be changed into a prime (523332443) 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 as a sum of consecutive naturals, namely, 130833109 + ... + 130833112.

Almost surely, 2^523332442 is an apocalyptic number.

523332442 is a deficient number, since it is larger than the sum of its proper divisors (261666224).

523332442 is a wasteful number, since it uses less digits than its factorization.

523332442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261666223.

The product of its digits is 17280, while the sum is 28.

The square root of 523332442 is about 22876.4604342542. The cubic root of 523332442 is about 805.8592946056.

Adding to 523332442 its reverse (244233325), we get a palindrome (767565767).

It can be divided in two parts, 5233 and 32442, that added together give a triangular number (37675 = T₂₇₄).

The spelling of 523332442 in words is "five hundred twenty-three million, three hundred thirty-two thousand, four hundred forty-two".