442111112 has 16 divisors (see below), whose sum is σ = 877720860. Its totient is φ = 208052224.

The previous prime is 442111099. The next prime is 442111121. The reversal of 442111112 is 211111244.

It can be written as a sum of positive squares in 2 ways, for example, as 400560196 + 41550916 = 20014^2 + 6446^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1625273 + ... + 1625544.

Almost surely, 2^442111112 is an apocalyptic number.

It is an amenable number.

442111112 is a deficient number, since it is larger than the sum of its proper divisors (435609748).

442111112 is a wasteful number, since it uses less digits than its factorization.

442111112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3250840 (or 3250836 counting only the distinct ones).

The product of its digits is 64, while the sum is 17.

The square root of 442111112 is about 21026.4384050176. The cubic root of 442111112 is about 761.8049849643.

Adding to 442111112 its reverse (211111244), we get a palindrome (653222356).

The spelling of 442111112 in words is "four hundred forty-two million, one hundred eleven thousand, one hundred twelve".