442440004 has 48 divisors (see below), whose sum is σ = 831600000. Its totient is φ = 205362432.

The previous prime is 442439957. The next prime is 442440007. The reversal of 442440004 is 400044244.

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 15 ways as a sum of consecutive naturals, for example, 1007617 + ... + 1008055.

It is an arithmetic number, because the mean of its divisors is an integer number (17325000).

Almost surely, 2^442440004 is an apocalyptic number.

It is an amenable number.

442440004 is a deficient number, since it is larger than the sum of its proper divisors (389159996).

442440004 is a wasteful number, since it uses less digits than its factorization.

442440004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700 (or 698 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

The square root of 442440004 is about 21034.2578666327. The cubic root of 442440004 is about 761.9938435676.

Adding to 442440004 its reverse (400044244), we get a palindrome (842484248).

The spelling of 442440004 in words is "four hundred forty-two million, four hundred forty thousand, four".