39873880 has 16 divisors (see below), whose sum is σ = 89716320. Its totient is φ = 15949536.

The previous prime is 39873877. The next prime is 39873893. The reversal of 39873880 is 8837893.

It is a self number, because there is not a number n which added to its sum of digits gives 39873880.

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, 498384 + ... + 498463.

It is an arithmetic number, because the mean of its divisors is an integer number (5607270).

Almost surely, 2^39873880 is an apocalyptic number.

It is an amenable number.

39873880 is an abundant number, since it is smaller than the sum of its proper divisors (49842440).

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

39873880 is a wasteful number, since it uses less digits than its factorization.

39873880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 996858 (or 996854 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 46.

The square root of 39873880 is about 6314.5767870856. The cubic root of 39873880 is about 341.6353739600.

The spelling of 39873880 in words is "thirty-nine million, eight hundred seventy-three thousand, eight hundred eighty".