1442857222 has 8 divisors (see below), whose sum is σ = 2166372000. Its totient is φ = 720733224.

The previous prime is 1442857219. The next prime is 1442857223. The reversal of 1442857222 is 2227582441.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442857223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 345097 + ... + 349252.

It is an arithmetic number, because the mean of its divisors is an integer number (270796500).

Almost surely, 2^1442857222 is an apocalyptic number.

1442857222 is a deficient number, since it is larger than the sum of its proper divisors (723514778).

1442857222 is a wasteful number, since it uses less digits than its factorization.

1442857222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695390.

The product of its digits is 71680, while the sum is 37.

The square root of 1442857222 is about 37984.9604712181. The cubic root of 1442857222 is about 1129.9896159017.

The spelling of 1442857222 in words is "one billion, four hundred forty-two million, eight hundred fifty-seven thousand, two hundred twenty-two".