39616668 has 192 divisors, whose sum is σ = 131712000. Its totient is φ = 10015488.

The previous prime is 39616663. The next prime is 39616669. The reversal of 39616668 is 86661693.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39616663) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 284943 + ... + 285081.

It is an arithmetic number, because the mean of its divisors is an integer number (686000).

Almost surely, 2^39616668 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39616668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65856000).

39616668 is an abundant number, since it is smaller than the sum of its proper divisors (92095332).

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

39616668 is a wasteful number, since it uses less digits than its factorization.

39616668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201 (or 193 counting only the distinct ones).

The product of its digits is 279936, while the sum is 45.

The square root of 39616668 is about 6294.1773092280. The cubic root of 39616668 is about 340.8991999458.

The spelling of 39616668 in words is "thirty-nine million, six hundred sixteen thousand, six hundred sixty-eight".