39717142 has 8 divisors (see below), whose sum is σ = 59976000. Its totient is φ = 19725144.

The previous prime is 39717137. The next prime is 39717173. The reversal of 39717142 is 24171793.

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

It is a junction number, because it is equal to n+sod(n) for n = 39717098 and 39717107.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66342 + ... + 66937.

It is an arithmetic number, because the mean of its divisors is an integer number (7497000).

Almost surely, 2^39717142 is an apocalyptic number.

39717142 is a deficient number, since it is larger than the sum of its proper divisors (20258858).

39717142 is a wasteful number, since it uses less digits than its factorization.

39717142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133430.

The product of its digits is 10584, while the sum is 34.

The square root of 39717142 is about 6302.1537588351. The cubic root of 39717142 is about 341.1871476957.

The spelling of 39717142 in words is "thirty-nine million, seven hundred seventeen thousand, one hundred forty-two".