39998808 has 48 divisors (see below), whose sum is σ = 108664920. Its totient is φ = 13291776.

The previous prime is 39998797. The next prime is 39998831. The reversal of 39998808 is 80889993.

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 11 ways as a sum of consecutive naturals, for example, 30535 + ... + 31817.

Almost surely, 2^39998808 is an apocalyptic number.

It is an amenable number.

39998808 is an abundant number, since it is smaller than the sum of its proper divisors (68666112).

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

39998808 is a wasteful number, since it uses less digits than its factorization.

39998808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1728 (or 1721 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 54.

The square root of 39998808 is about 6324.4610837604. The cubic root of 39998808 is about 341.9917921494.

The spelling of 39998808 in words is "thirty-nine million, nine hundred ninety-eight thousand, eight hundred eight".