442042022 has 8 divisors (see below), whose sum is σ = 663320016. Its totient is φ = 220935352.

The previous prime is 442042009. The next prime is 442042031. The reversal of 442042022 is 220240244.

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

It is a super-2 number, since 2×442042022² = 390802298427696968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 442041985 and 442042003.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36173 + ... + 46824.

It is an arithmetic number, because the mean of its divisors is an integer number (82915002).

Almost surely, 2^442042022 is an apocalyptic number.

442042022 is a deficient number, since it is larger than the sum of its proper divisors (221277994).

442042022 is a wasteful number, since it uses less digits than its factorization.

442042022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85662.

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 442042022 is about 21024.7954092305. The cubic root of 442042022 is about 761.7652997306.

Adding to 442042022 its reverse (220240244), we get a palindrome (662282266).

The spelling of 442042022 in words is "four hundred forty-two million, forty-two thousand, twenty-two".