142442202 has 64 divisors (see below), whose sum is σ = 346245120. Its totient is φ = 38159424.

The previous prime is 142442189. The next prime is 142442233. The reversal of 142442202 is 202244241.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 81328 + ... + 83060.

It is an arithmetic number, because the mean of its divisors is an integer number (5410080).

Almost surely, 2^142442202 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142442202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173122560).

142442202 is an abundant number, since it is smaller than the sum of its proper divisors (203802918).

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

142442202 is a wasteful number, since it uses less digits than its factorization.

142442202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1867.

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 142442202 is about 11934.9152489660. The cubic root of 142442202 is about 522.2513359320.

Adding to 142442202 its reverse (202244241), we get a palindrome (344686443).

The spelling of 142442202 in words is "one hundred forty-two million, four hundred forty-two thousand, two hundred two".