142244422 has 4 divisors (see below), whose sum is σ = 213366636. Its totient is φ = 71122210.

The previous prime is 142244411. The next prime is 142244483. The reversal of 142244422 is 224442241.

142244422 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×142244422² = 40466951180228168, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35561104 + ... + 35561107.

It is an arithmetic number, because the mean of its divisors is an integer number (53341659).

Almost surely, 2^142244422 is an apocalyptic number.

142244422 is a deficient number, since it is larger than the sum of its proper divisors (71122214).

142244422 is an equidigital number, since it uses as much as digits as its factorization.

142244422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71122213.

The product of its digits is 4096, while the sum is 25.

The square root of 142244422 is about 11926.6265976595. The cubic root of 142244422 is about 522.0095098653.

Adding to 142244422 its reverse (224442241), we get a palindrome (366686663).

The spelling of 142244422 in words is "one hundred forty-two million, two hundred forty-four thousand, four hundred twenty-two".