39985774 has 8 divisors (see below), whose sum is σ = 60202440. Its totient is φ = 19918296.

The previous prime is 39985769. The next prime is 39985787. The reversal of 39985774 is 47758993.

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

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, 36624 + ... + 37699.

It is an arithmetic number, because the mean of its divisors is an integer number (7525305).

Almost surely, 2^39985774 is an apocalyptic number.

39985774 is a deficient number, since it is larger than the sum of its proper divisors (20216666).

39985774 is a wasteful number, since it uses less digits than its factorization.

39985774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74594.

The product of its digits is 1905120, while the sum is 52.

The square root of 39985774 is about 6323.4305562724. The cubic root of 39985774 is about 341.9546409983.

The spelling of 39985774 in words is "thirty-nine million, nine hundred eighty-five thousand, seven hundred seventy-four".