442143022 has 8 divisors (see below), whose sum is σ = 669299400. Its totient is φ = 219043224.

The previous prime is 442143017. The next prime is 442143061. The reversal of 442143022 is 220341244.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 442142984 and 442143002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1013872 + ... + 1014307.

It is an arithmetic number, because the mean of its divisors is an integer number (83662425).

Almost surely, 2^442143022 is an apocalyptic number.

442143022 is a deficient number, since it is larger than the sum of its proper divisors (227156378).

442143022 is a wasteful number, since it uses less digits than its factorization.

442143022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2028290.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 442143022 is about 21027.1971979149. The cubic root of 442143022 is about 761.8233126438.

Adding to 442143022 its reverse (220341244), we get a palindrome (662484266).

The spelling of 442143022 in words is "four hundred forty-two million, one hundred forty-three thousand, twenty-two".