142864242 has 8 divisors (see below), whose sum is σ = 285728496. Its totient is φ = 47621412.

The previous prime is 142864231. The next prime is 142864259. The reversal of 142864242 is 242468241.

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

142864242 is an admirable number.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11905348 + ... + 11905359.

It is an arithmetic number, because the mean of its divisors is an integer number (35716062).

Almost surely, 2^142864242 is an apocalyptic number.

142864242 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.

142864242 is a wasteful number, since it uses less digits than its factorization.

142864242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23810712.

The product of its digits is 24576, while the sum is 33.

The square root of 142864242 is about 11952.5830681071. The cubic root of 142864242 is about 522.7666177426.

It can be divided in two parts, 14286 and 4242, that added together give a triangular number (18528 = T₁₉₂).

The spelling of 142864242 in words is "one hundred forty-two million, eight hundred sixty-four thousand, two hundred forty-two".