39988648 has 32 divisors (see below), whose sum is σ = 86074560. Its totient is φ = 17061120.

The previous prime is 39988643. The next prime is 39988649. The reversal of 39988648 is 84688993.

It is not an unprimeable number, because it can be changed into a prime (39988643) 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 7 ways as a sum of consecutive naturals, for example, 12015 + ... + 14977.

It is an arithmetic number, because the mean of its divisors is an integer number (2689830).

Almost surely, 2^39988648 is an apocalyptic number.

It is an amenable number.

39988648 is an abundant number, since it is smaller than the sum of its proper divisors (46085912).

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

39988648 is a wasteful number, since it uses less digits than its factorization.

39988648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3217 (or 3213 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 55.

The square root of 39988648 is about 6323.6578022534. The cubic root of 39988648 is about 341.9628335294.

The spelling of 39988648 in words is "thirty-nine million, nine hundred eighty-eight thousand, six hundred forty-eight".