442360523 has 4 divisors (see below), whose sum is σ = 482575128. Its totient is φ = 402145920.

The previous prime is 442360487. The next prime is 442360537. The reversal of 442360523 is 325063244.

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

It is not a de Polignac number, because 442360523 - 2⁸ = 442360267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442360543) 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, 20107286 + ... + 20107307.

It is an arithmetic number, because the mean of its divisors is an integer number (120643782).

Almost surely, 2^442360523 is an apocalyptic number.

442360523 is a deficient number, since it is larger than the sum of its proper divisors (40214605).

442360523 is a wasteful number, since it uses less digits than its factorization.

442360523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40214604.

The product of its (nonzero) digits is 17280, while the sum is 29.

The square root of 442360523 is about 21032.3684591156. The cubic root of 442360523 is about 761.9482120250.

It can be divided in two parts, 4423 and 60523, that added together give a palindrome (64946).

The spelling of 442360523 in words is "four hundred forty-two million, three hundred sixty thousand, five hundred twenty-three".