442440402133 has 4 divisors (see below), whose sum is σ = 442457888320. Its totient is φ = 442422915948.

The previous prime is 442440402127. The next prime is 442440402137. The reversal of 442440402133 is 331204044244.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 442440402133 - 2²⁹ = 441903531221 is a prime.

It is a super-2 number, since 2×442440402133² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 442440402095 and 442440402104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442440402137) 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, 8705085 + ... + 8755762.

It is an arithmetic number, because the mean of its divisors is an integer number (110614472080).

Almost surely, 2^442440402133 is an apocalyptic number.

It is an amenable number.

442440402133 is a deficient number, since it is larger than the sum of its proper divisors (17486187).

442440402133 is a wasteful number, since it uses less digits than its factorization.

442440402133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17486186.

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 442440402133 its reverse (331204044244), we get a palindrome (773644446377).

The spelling of 442440402133 in words is "four hundred forty-two billion, four hundred forty million, four hundred two thousand, one hundred thirty-three".