38706143 has 8 divisors (see below), whose sum is σ = 44508288. Its totient is φ = 32972184.

The previous prime is 38706139. The next prime is 38706163. The reversal of 38706143 is 34160783.

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

It is not a de Polignac number, because 38706143 - 2² = 38706139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38706103) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 15821 + ... + 18102.

It is an arithmetic number, because the mean of its divisors is an integer number (5563536).

Almost surely, 2^38706143 is an apocalyptic number.

38706143 is a deficient number, since it is larger than the sum of its proper divisors (5802145).

38706143 is a wasteful number, since it uses less digits than its factorization.

38706143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34093.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 38706143 is about 6221.4261226828. The cubic root of 38706143 is about 338.2672599962.

The spelling of 38706143 in words is "thirty-eight million, seven hundred six thousand, one hundred forty-three".