442020441 has 8 divisors (see below), whose sum is σ = 589494784. Its totient is φ = 294613200.

The previous prime is 442020437. The next prime is 442020461. The reversal of 442020441 is 144020244.

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

It is not a de Polignac number, because 442020441 - 2² = 442020437 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442020461) 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, 1416 + ... + 29766.

It is an arithmetic number, because the mean of its divisors is an integer number (73686848).

Almost surely, 2^442020441 is an apocalyptic number.

It is an amenable number.

442020441 is a deficient number, since it is larger than the sum of its proper divisors (147474343).

442020441 is a wasteful number, since it uses less digits than its factorization.

442020441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33551.

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

The square root of 442020441 is about 21024.2821756178. The cubic root of 442020441 is about 761.7529027762.

Adding to 442020441 its reverse (144020244), we get a palindrome (586040685).

The spelling of 442020441 in words is "four hundred forty-two million, twenty thousand, four hundred forty-one".