142040022 has 16 divisors (see below), whose sum is σ = 288895680. Its totient is φ = 46544072.

The previous prime is 142040009. The next prime is 142040023. The reversal of 142040022 is 220040241.

It is a junction number, because it is equal to n+sod(n) for n = 142039983 and 142040010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142040023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 200268 + ... + 200975.

It is an arithmetic number, because the mean of its divisors is an integer number (18055980).

Almost surely, 2^142040022 is an apocalyptic number.

142040022 is an abundant number, since it is smaller than the sum of its proper divisors (146855658).

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

142040022 is a wasteful number, since it uses less digits than its factorization.

142040022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401307.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 142040022 is about 11918.0544553211. The cubic root of 142040022 is about 521.7593538532.

Adding to 142040022 its reverse (220040241), we get a palindrome (362080263).

The spelling of 142040022 in words is "one hundred forty-two million, forty thousand, twenty-two".