142320678 has 16 divisors (see below), whose sum is σ = 299622720. Its totient is φ = 44943336.

The previous prime is 142320677. The next prime is 142320683. The reversal of 142320678 is 876023241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142320677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 624100 + ... + 624327.

It is an arithmetic number, because the mean of its divisors is an integer number (18726420).

Almost surely, 2^142320678 is an apocalyptic number.

142320678 is an abundant number, since it is smaller than the sum of its proper divisors (157302042).

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

142320678 is a wasteful number, since it uses less digits than its factorization.

142320678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1248451.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 142320678 is about 11929.8230498193. The cubic root of 142320678 is about 522.1027747902.

The spelling of 142320678 in words is "one hundred forty-two million, three hundred twenty thousand, six hundred seventy-eight".