442002042 has 16 divisors (see below), whose sum is σ = 982226880. Its totient is φ = 147333996.

The previous prime is 442002013. The next prime is 442002089. The reversal of 442002042 is 240200244.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4092558 + ... + 4092665.

It is an arithmetic number, because the mean of its divisors is an integer number (61389180).

Almost surely, 2^442002042 is an apocalyptic number.

442002042 is an abundant number, since it is smaller than the sum of its proper divisors (540224838).

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

442002042 is a wasteful number, since it uses less digits than its factorization.

442002042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8185234 (or 8185228 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

The square root of 442002042 is about 21023.8446055901. The cubic root of 442002042 is about 761.7423333659.

Adding to 442002042 its reverse (240200244), we get a palindrome (682202286).

The spelling of 442002042 in words is "four hundred forty-two million, two thousand, forty-two".