442003111 has 8 divisors (see below), whose sum is σ = 510549264. Its totient is φ = 378184320.

The previous prime is 442003109. The next prime is 442003117. The reversal of 442003111 is 111300244.

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

It is a cyclic number.

It is not a de Polignac number, because 442003111 - 2¹ = 442003109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442003117) 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, 1181640 + ... + 1182013.

It is an arithmetic number, because the mean of its divisors is an integer number (63818658).

Almost surely, 2^442003111 is an apocalyptic number.

442003111 is a deficient number, since it is larger than the sum of its proper divisors (68546153).

442003111 is a wasteful number, since it uses less digits than its factorization.

442003111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2363681.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 442003111 is about 21023.8700290884. The cubic root of 442003111 is about 761.7429474671.

Adding to 442003111 its reverse (111300244), we get a palindrome (553303355).

The spelling of 442003111 in words is "four hundred forty-two million, three thousand, one hundred eleven".