142431378 has 8 divisors (see below), whose sum is σ = 284862768. Its totient is φ = 47477124.

The previous prime is 142431361. The next prime is 142431379. The reversal of 142431378 is 873134241.

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

142431378 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (142431379) 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 3 ways as a sum of consecutive naturals, for example, 11869276 + ... + 11869287.

It is an arithmetic number, because the mean of its divisors is an integer number (35607846).

Almost surely, 2^142431378 is an apocalyptic number.

142431378 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.

142431378 is a wasteful number, since it uses less digits than its factorization.

142431378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23738568.

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

The square root of 142431378 is about 11934.4617809099. The cubic root of 142431378 is about 522.2381071942.

The spelling of 142431378 in words is "one hundred forty-two million, four hundred thirty-one thousand, three hundred seventy-eight".