142842738 has 32 divisors (see below), whose sum is σ = 308209536. Its totient is φ = 43966208.

The previous prime is 142842659. The next prime is 142842743. The reversal of 142842738 is 837248241.

It is a junction number, because it is equal to n+sod(n) for n = 142842696 and 142842705.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 7806 + ... + 18617.

It is an arithmetic number, because the mean of its divisors is an integer number (9631548).

Almost surely, 2^142842738 is an apocalyptic number.

142842738 is an abundant number, since it is smaller than the sum of its proper divisors (165366798).

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

142842738 is a wasteful number, since it uses less digits than its factorization.

142842738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26498.

The product of its digits is 86016, while the sum is 39.

The square root of 142842738 is about 11951.6834797446. The cubic root of 142842738 is about 522.7403873921.

The spelling of 142842738 in words is "one hundred forty-two million, eight hundred forty-two thousand, seven hundred thirty-eight".