39961136 has 10 divisors (see below), whose sum is σ = 77424732. Its totient is φ = 19980560.

The previous prime is 39961133. The next prime is 39961153. The reversal of 39961136 is 63116993.

It is a self number, because there is not a number n which added to its sum of digits gives 39961136.

It is not an unprimeable number, because it can be changed into a prime (39961133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1248770 + ... + 1248801.

Almost surely, 2^39961136 is an apocalyptic number.

It is an amenable number.

39961136 is a deficient number, since it is larger than the sum of its proper divisors (37463596).

39961136 is a wasteful number, since it uses less digits than its factorization.

39961136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2497579 (or 2497573 counting only the distinct ones).

The product of its digits is 26244, while the sum is 38.

The square root of 39961136 is about 6321.4821046967. The cubic root of 39961136 is about 341.8843926022.

The spelling of 39961136 in words is "thirty-nine million, nine hundred sixty-one thousand, one hundred thirty-six".