442434400131 has 8 divisors (see below), whose sum is σ = 593171719504. Its totient is φ = 293326673760.

The previous prime is 442434400129. The next prime is 442434400153. The reversal of 442434400131 is 131004434244.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 442434400131 - 2¹ = 442434400129 is a prime.

It is a super-2 number, since 2×442434400131² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442434400181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 407397616 + ... + 407398701.

It is an arithmetic number, because the mean of its divisors is an integer number (74146464938).

Almost surely, 2^442434400131 is an apocalyptic number.

442434400131 is a deficient number, since it is larger than the sum of its proper divisors (150737319373).

442434400131 is a wasteful number, since it uses less digits than its factorization.

442434400131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 814796501.

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 442434400131 its reverse (131004434244), we get a palindrome (573438834375).

The spelling of 442434400131 in words is "four hundred forty-two billion, four hundred thirty-four million, four hundred thousand, one hundred thirty-one".