442002441 has 8 divisors (see below), whose sum is σ = 589489120. Its totient is φ = 294592032.

The previous prime is 442002439. The next prime is 442002497. The reversal of 442002441 is 144200244.

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

It is not a de Polignac number, because 442002441 - 2¹ = 442002439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442002541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3796 + ... + 29973.

It is an arithmetic number, because the mean of its divisors is an integer number (73686140).

Almost surely, 2^442002441 is an apocalyptic number.

It is an amenable number.

442002441 is a deficient number, since it is larger than the sum of its proper divisors (147486679).

442002441 is a wasteful number, since it uses less digits than its factorization.

442002441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38135.

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

The square root of 442002441 is about 21023.8540948133. The cubic root of 442002441 is about 761.7425625769.

Adding to 442002441 its reverse (144200244), we get a palindrome (586202685).

The spelling of 442002441 in words is "four hundred forty-two million, two thousand, four hundred forty-one".