39959244 has 120 divisors (see below), whose sum is σ = 115259760. Its totient is φ = 11995776.

The previous prime is 39959243. The next prime is 39959321. The reversal of 39959244 is 44295993.

It is a happy number.

39959244 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 39959244.

It is not an unprimeable number, because it can be changed into a prime (39959243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 223147 + ... + 223325.

It is an arithmetic number, because the mean of its divisors is an integer number (960498).

Almost surely, 2^39959244 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 39959244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57629880).

39959244 is an abundant number, since it is smaller than the sum of its proper divisors (75300516).

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

39959244 is a wasteful number, since it uses less digits than its factorization.

39959244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261 (or 250 counting only the distinct ones).

The product of its digits is 349920, while the sum is 45.

The square root of 39959244 is about 6321.3324544751. The cubic root of 39959244 is about 341.8789968974.

The spelling of 39959244 in words is "thirty-nine million, nine hundred fifty-nine thousand, two hundred forty-four".