442405825042 has 8 divisors (see below), whose sum is σ = 663613149132. Its totient is φ = 221201442000.

The previous prime is 442405825031. The next prime is 442405825157. The reversal of 442405825042 is 240528504244.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 421459341601 + 20946483441 = 649199^2 + 144729^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 442405824986 and 442405825004.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 310009 + ... + 990412.

Almost surely, 2^442405825042 is an apocalyptic number.

442405825042 is a deficient number, since it is larger than the sum of its proper divisors (221207324090).

442405825042 is a wasteful number, since it uses less digits than its factorization.

442405825042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1470524.

The product of its (nonzero) digits is 409600, while the sum is 40.

The spelling of 442405825042 in words is "four hundred forty-two billion, four hundred five million, eight hundred twenty-five thousand, forty-two".