442001442 has 32 divisors (see below), whose sum is σ = 942077952. Its totient is φ = 137927504.

The previous prime is 442001423. The next prime is 442001447. The reversal of 442001442 is 244100244.

It is not an unprimeable number, because it can be changed into a prime (442001447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27588 + ... + 40559.

It is an arithmetic number, because the mean of its divisors is an integer number (29439936).

Almost surely, 2^442001442 is an apocalyptic number.

442001442 is an abundant number, since it is smaller than the sum of its proper divisors (500076510).

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

442001442 is a wasteful number, since it uses less digits than its factorization.

442001442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68222.

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 442001442 is about 21023.8303360734. The cubic root of 442001442 is about 761.7419886876.

Adding to 442001442 its reverse (244100244), we get a palindrome (686101686).

The spelling of 442001442 in words is "four hundred forty-two million, one thousand, four hundred forty-two".