39668020 has 48 divisors (see below), whose sum is σ = 96647040. Its totient is φ = 13394304.

The previous prime is 39667993. The next prime is 39668039. The reversal of 39668020 is 2086693.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7266 + ... + 11494.

It is an arithmetic number, because the mean of its divisors is an integer number (2013480).

Almost surely, 2^39668020 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 39668020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48323520).

39668020 is an abundant number, since it is smaller than the sum of its proper divisors (56979020).

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

39668020 is a wasteful number, since it uses less digits than its factorization.

39668020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4312 (or 4310 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 39668020 is about 6298.2553139739. The cubic root of 39668020 is about 341.0464300404.

The spelling of 39668020 in words is "thirty-nine million, six hundred sixty-eight thousand, twenty".