39868988 has 12 divisors (see below), whose sum is σ = 69834240. Its totient is φ = 19916352.

The previous prime is 39868987. The next prime is 39868991. The reversal of 39868988 is 88986893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39868987) by changing a digit.

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, 1220 + ... + 9012.

It is an arithmetic number, because the mean of its divisors is an integer number (5819520).

Almost surely, 2^39868988 is an apocalyptic number.

It is an amenable number.

39868988 is a deficient number, since it is larger than the sum of its proper divisors (29965252).

39868988 is a wasteful number, since it uses less digits than its factorization.

39868988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9076 (or 9074 counting only the distinct ones).

The product of its digits is 5971968, while the sum is 59.

The square root of 39868988 is about 6314.1894174945. The cubic root of 39868988 is about 341.6214020014.

The spelling of 39868988 in words is "thirty-nine million, eight hundred sixty-eight thousand, nine hundred eighty-eight".