142439336 has 32 divisors (see below), whose sum is σ = 288519840. Its totient is φ = 65535168.

The previous prime is 142439321. The next prime is 142439351. The reversal of 142439336 is 633934241.

It is an interprime number because it is at equal distance from previous prime (142439321) and next prime (142439351).

It is a junction number, because it is equal to n+sod(n) for n = 142439296 and 142439305.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34115 + ... + 38061.

It is an arithmetic number, because the mean of its divisors is an integer number (9016245).

Almost surely, 2^142439336 is an apocalyptic number.

It is an amenable number.

142439336 is an abundant number, since it is smaller than the sum of its proper divisors (146080504).

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

142439336 is a wasteful number, since it uses less digits than its factorization.

142439336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4313 (or 4309 counting only the distinct ones).

The product of its digits is 46656, while the sum is 35.

The square root of 142439336 is about 11934.7951804796. The cubic root of 142439336 is about 522.2478332660.

The spelling of 142439336 in words is "one hundred forty-two million, four hundred thirty-nine thousand, three hundred thirty-six".