142338774 has 8 divisors (see below), whose sum is σ = 284677560. Its totient is φ = 47446256.

The previous prime is 142338731. The next prime is 142338797. The reversal of 142338774 is 477833241.

It is a sphenic number, since it is the product of 3 distinct primes.

142338774 is an admirable number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 11861559 + ... + 11861570.

It is an arithmetic number, because the mean of its divisors is an integer number (35584695).

Almost surely, 2^142338774 is an apocalyptic number.

142338774 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

142338774 is a wasteful number, since it uses less digits than its factorization.

142338774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23723134.

The product of its digits is 112896, while the sum is 39.

The square root of 142338774 is about 11930.5814611024. The cubic root of 142338774 is about 522.1249022176.

The spelling of 142338774 in words is "one hundred forty-two million, three hundred thirty-eight thousand, seven hundred seventy-four".