142838886 has 16 divisors (see below), whose sum is σ = 294893568. Its totient is φ = 46077000.

The previous prime is 142838867. The next prime is 142838887. The reversal of 142838886 is 688838241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142838887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 383790 + ... + 384161.

It is an arithmetic number, because the mean of its divisors is an integer number (18430848).

Almost surely, 2^142838886 is an apocalyptic number.

142838886 is an abundant number, since it is smaller than the sum of its proper divisors (152054682).

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

142838886 is a wasteful number, since it uses less digits than its factorization.

142838886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 767987.

The product of its digits is 589824, while the sum is 48.

The square root of 142838886 is about 11951.5223298122. The cubic root of 142838886 is about 522.7356884855.

The spelling of 142838886 in words is "one hundred forty-two million, eight hundred thirty-eight thousand, eight hundred eighty-six".