442142118 has 64 divisors (see below), whose sum is σ = 1080483840. Its totient is φ = 132904800.

The previous prime is 442142117. The next prime is 442142143. The reversal of 442142118 is 811241244.

442142118 is a `hidden beast` number, since 442 + 1 + 4 + 211 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 442142091 and 442142100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442142111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72508 + ... + 78368.

It is an arithmetic number, because the mean of its divisors is an integer number (16882560).

Almost surely, 2^442142118 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 442142118, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (540241920).

442142118 is an abundant number, since it is smaller than the sum of its proper divisors (638341722).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

442142118 is a wasteful number, since it uses less digits than its factorization.

442142118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6010 (or 6004 counting only the distinct ones).

The product of its digits is 2048, while the sum is 27.

The square root of 442142118 is about 21027.1757019339. The cubic root of 442142118 is about 761.8227934387.

The spelling of 442142118 in words is "four hundred forty-two million, one hundred forty-two thousand, one hundred eighteen".