442405002 has 16 divisors (see below), whose sum is σ = 952872480. Its totient is φ = 136124592.

The previous prime is 442404997. The next prime is 442405003. The reversal of 442405002 is 200504244.

It is a self number, because there is not a number n which added to its sum of digits gives 442405002.

It is not an unprimeable number, because it can be changed into a prime (442405003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2835852 + ... + 2836007.

It is an arithmetic number, because the mean of its divisors is an integer number (59554530).

Almost surely, 2^442405002 is an apocalyptic number.

442405002 is an abundant number, since it is smaller than the sum of its proper divisors (510467478).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

442405002 is a wasteful number, since it uses less digits than its factorization.

442405002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5671877.

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 442405002 is about 21033.4258265267. The cubic root of 442405002 is about 761.9737489320.

Adding to 442405002 its reverse (200504244), we get a palindrome (642909246).

The spelling of 442405002 in words is "four hundred forty-two million, four hundred five thousand, two".