39640996 has 6 divisors (see below), whose sum is σ = 69371750. Its totient is φ = 19820496.

The previous prime is 39640987. The next prime is 39641051. The reversal of 39640996 is 69904693.

It can be written as a sum of positive squares in only one way, i.e., 34975396 + 4665600 = 5914^2 + 2160^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4955121 + ... + 4955128.

Almost surely, 2^39640996 is an apocalyptic number.

It is an amenable number.

39640996 is a deficient number, since it is larger than the sum of its proper divisors (29730754).

39640996 is a wasteful number, since it uses less digits than its factorization.

39640996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9910253 (or 9910251 counting only the distinct ones).

The product of its (nonzero) digits is 314928, while the sum is 46.

The square root of 39640996 is about 6296.1095924388. The cubic root of 39640996 is about 340.9689660242.

The spelling of 39640996 in words is "thirty-nine million, six hundred forty thousand, nine hundred ninety-six".