442440002 has 8 divisors (see below), whose sum is σ = 670103616. Its totient is φ = 219072132.

The previous prime is 442439957. The next prime is 442440007. The reversal of 442440002 is 200044244.

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

It is not an unprimeable number, because it can be changed into a prime (442440007) 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, 1073678 + ... + 1074089.

It is an arithmetic number, because the mean of its divisors is an integer number (83762952).

Almost surely, 2^442440002 is an apocalyptic number.

442440002 is a deficient number, since it is larger than the sum of its proper divisors (227663614).

442440002 is a wasteful number, since it uses less digits than its factorization.

442440002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2147872.

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 442440002 is about 21034.2578190912. The cubic root of 442440002 is about 761.9938424194.

Adding to 442440002 its reverse (200044244), we get a palindrome (642484246).

The spelling of 442440002 in words is "four hundred forty-two million, four hundred forty thousand, two".