39998396 has 12 divisors (see below), whose sum is σ = 70549248. Its totient is φ = 19841472.

The previous prime is 39998393. The next prime is 39998423. The reversal of 39998396 is 69389993.

39998396 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39998393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38861 + ... + 39876.

It is an arithmetic number, because the mean of its divisors is an integer number (5879104).

Almost surely, 2^39998396 is an apocalyptic number.

It is an amenable number.

39998396 is a deficient number, since it is larger than the sum of its proper divisors (30550852).

39998396 is a wasteful number, since it uses less digits than its factorization.

39998396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78868 (or 78866 counting only the distinct ones).

The product of its digits is 2834352, while the sum is 56.

The square root of 39998396 is about 6324.4285117313. The cubic root of 39998396 is about 341.9906179385.

The spelling of 39998396 in words is "thirty-nine million, nine hundred ninety-eight thousand, three hundred ninety-six".