39839149 has 8 divisors (see below), whose sum is σ = 45722880. Its totient is φ = 34003536.

The previous prime is 39839141. The next prime is 39839153. The reversal of 39839149 is 94193893.

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

It is not a de Polignac number, because 39839149 - 2³ = 39839141 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 39839099 and 39839108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39839141) 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, 10234 + ... + 13579.

It is an arithmetic number, because the mean of its divisors is an integer number (5715360).

Almost surely, 2^39839149 is an apocalyptic number.

It is an amenable number.

39839149 is a deficient number, since it is larger than the sum of its proper divisors (5883731).

39839149 is a wasteful number, since it uses less digits than its factorization.

39839149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24059.

The product of its digits is 209952, while the sum is 46.

The square root of 39839149 is about 6311.8261224467. The cubic root of 39839149 is about 341.5361545811.

The spelling of 39839149 in words is "thirty-nine million, eight hundred thirty-nine thousand, one hundred forty-nine".