39968841 has 24 divisors (see below), whose sum is σ = 59200960. Its totient is φ = 23965920.

The previous prime is 39968839. The next prime is 39968849. The reversal of 39968841 is 14886993.

It is not a de Polignac number, because 39968841 - 2¹ = 39968839 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39968849) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36855 + ... + 37923.

Almost surely, 2^39968841 is an apocalyptic number.

It is an amenable number.

39968841 is a deficient number, since it is larger than the sum of its proper divisors (19232119).

39968841 is a wasteful number, since it uses less digits than its factorization.

39968841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1197 (or 1186 counting only the distinct ones).

The product of its digits is 373248, while the sum is 48.

The square root of 39968841 is about 6322.0915051904. The cubic root of 39968841 is about 341.9063643663.

The spelling of 39968841 in words is "thirty-nine million, nine hundred sixty-eight thousand, eight hundred forty-one".