442602406406 has 8 divisors (see below), whose sum is σ = 663909123720. Its totient is φ = 221299365168.

The previous prime is 442602406369. The next prime is 442602406409. The reversal of 442602406406 is 604604206244.

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

It is a self number, because there is not a number n which added to its sum of digits gives 442602406406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442602406409) 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, 595196 + ... + 1113311.

It is an arithmetic number, because the mean of its divisors is an integer number (82988640465).

Almost surely, 2^442602406406 is an apocalyptic number.

442602406406 is a deficient number, since it is larger than the sum of its proper divisors (221306717314).

442602406406 is a wasteful number, since it uses less digits than its factorization.

442602406406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1838038.

The product of its (nonzero) digits is 221184, while the sum is 38.

The spelling of 442602406406 in words is "four hundred forty-two billion, six hundred two million, four hundred six thousand, four hundred six".