39616940 has 24 divisors (see below), whose sum is σ = 90759312. Its totient is φ = 14406080.

The previous prime is 39616937. The next prime is 39616943. The reversal of 39616940 is 4961693.

It is an interprime number because it is at equal distance from previous prime (39616937) and next prime (39616943).

It is a junction number, because it is equal to n+sod(n) for n = 39616894 and 39616903.

It is not an unprimeable number, because it can be changed into a prime (39616943) 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 7 ways as a sum of consecutive naturals, for example, 89819 + ... + 90258.

It is an arithmetic number, because the mean of its divisors is an integer number (3781638).

Almost surely, 2^39616940 is an apocalyptic number.

It is an amenable number.

39616940 is an abundant number, since it is smaller than the sum of its proper divisors (51142372).

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

39616940 is a wasteful number, since it uses less digits than its factorization.

39616940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180097 (or 180095 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 39616940 is about 6294.1989164627. The cubic root of 39616940 is about 340.8999801255.

It can be divided in two parts, 3961 and 6940, that added together give a palindrome (10901).

The spelling of 39616940 in words is "thirty-nine million, six hundred sixteen thousand, nine hundred forty".