39968336 has 10 divisors (see below), whose sum is σ = 77438682. Its totient is φ = 19984160.

The previous prime is 39968323. The next prime is 39968339. The reversal of 39968336 is 63386993.

It can be written as a sum of positive squares in only one way, i.e., 35473936 + 4494400 = 5956^2 + 2120^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39968339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1248995 + ... + 1249026.

Almost surely, 2^39968336 is an apocalyptic number.

It is an amenable number.

39968336 is a deficient number, since it is larger than the sum of its proper divisors (37470346).

39968336 is a wasteful number, since it uses less digits than its factorization.

39968336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2498029 (or 2498023 counting only the distinct ones).

The product of its digits is 629856, while the sum is 47.

The square root of 39968336 is about 6322.0515657498. The cubic root of 39968336 is about 341.9049243826.

It can be divided in two parts, 39968 and 336, that added together give a palindrome (40304).

The spelling of 39968336 in words is "thirty-nine million, nine hundred sixty-eight thousand, three hundred thirty-six".