442152423413 has 4 divisors (see below), whose sum is σ = 442197917388. Its totient is φ = 442106929440.

The previous prime is 442152423379. The next prime is 442152423443. The reversal of 442152423413 is 314324251244.

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 21344625604 + 420807797809 = 146098^2 + 648697^2 .

It is a cyclic number.

It is not a de Polignac number, because 442152423413 - 2³² = 437857456117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442152423443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22732406 + ... + 22751847.

It is an arithmetic number, because the mean of its divisors is an integer number (110549479347).

Almost surely, 2^442152423413 is an apocalyptic number.

It is an amenable number.

442152423413 is a deficient number, since it is larger than the sum of its proper divisors (45493975).

442152423413 is an equidigital number, since it uses as much as digits as its factorization.

442152423413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45493974.

The product of its digits is 92160, while the sum is 35.

Adding to 442152423413 its reverse (314324251244), we get a palindrome (756476674657).

The spelling of 442152423413 in words is "four hundred forty-two billion, one hundred fifty-two million, four hundred twenty-three thousand, four hundred thirteen".