39888072 has 256 divisors, whose sum is σ = 140083200. Its totient is φ = 10264320.

The previous prime is 39888067. The next prime is 39888077. The reversal of 39888072 is 27088893.

It is an interprime number because it is at equal distance from previous prime (39888067) and next prime (39888077).

It is not an unprimeable number, because it can be changed into a prime (39888077) 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, 1078038 + ... + 1078074.

It is an arithmetic number, because the mean of its divisors is an integer number (547200).

Almost surely, 2^39888072 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 39888072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70041600).

39888072 is an abundant number, since it is smaller than the sum of its proper divisors (100195128).

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

39888072 is a wasteful number, since it uses less digits than its factorization.

39888072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113 (or 103 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 39888072 is about 6315.7004362145. The cubic root of 39888072 is about 341.6759010261.

The spelling of 39888072 in words is "thirty-nine million, eight hundred eighty-eight thousand, seventy-two".