442001311 has 8 divisors (see below), whose sum is σ = 450301824. Its totient is φ = 433771800.

The previous prime is 442001249. The next prime is 442001347. The reversal of 442001311 is 113100244.

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 442001311 - 2¹⁵ = 441968543 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 (442001381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5101 + ... + 30166.

It is an arithmetic number, because the mean of its divisors is an integer number (56287728).

Almost surely, 2^442001311 is an apocalyptic number.

442001311 is a deficient number, since it is larger than the sum of its proper divisors (8300513).

442001311 is a wasteful number, since it uses less digits than its factorization.

442001311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35501.

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

The square root of 442001311 is about 21023.8272205610. The cubic root of 442001311 is about 761.7419134328.

Adding to 442001311 its reverse (113100244), we get a palindrome (555101555).

The spelling of 442001311 in words is "four hundred forty-two million, one thousand, three hundred eleven".