39964448 has 24 divisors (see below), whose sum is σ = 82822320. Its totient is φ = 18930240.

The previous prime is 39964447. The next prime is 39964469. The reversal of 39964448 is 84446993.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (39964447) 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, 32258 + ... + 33473.

It is an arithmetic number, because the mean of its divisors is an integer number (3450930).

Almost surely, 2^39964448 is an apocalyptic number.

39964448 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

39964448 is an abundant number, since it is smaller than the sum of its proper divisors (42857872).

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

39964448 is a wasteful number, since it uses less digits than its factorization.

39964448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65760 (or 65752 counting only the distinct ones).

The product of its digits is 746496, while the sum is 47.

The square root of 39964448 is about 6321.7440631522. The cubic root of 39964448 is about 341.8938375275.

The spelling of 39964448 in words is "thirty-nine million, nine hundred sixty-four thousand, four hundred forty-eight".