39886040 has 16 divisors (see below), whose sum is σ = 89743680. Its totient is φ = 15954400.

The previous prime is 39886039. The next prime is 39886079. The reversal of 39886040 is 4068893.

It is a junction number, because it is equal to n+sod(n) for n = 39885985 and 39886003.

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, 498536 + ... + 498615.

It is an arithmetic number, because the mean of its divisors is an integer number (5608980).

Almost surely, 2^39886040 is an apocalyptic number.

It is an amenable number.

39886040 is an abundant number, since it is smaller than the sum of its proper divisors (49857640).

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

39886040 is a wasteful number, since it uses less digits than its factorization.

39886040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 997162 (or 997158 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 39886040 is about 6315.5395652311. The cubic root of 39886040 is about 341.6700989807.

The spelling of 39886040 in words is "thirty-nine million, eight hundred eighty-six thousand, forty".