39504340 has 48 divisors (see below), whose sum is σ = 87276672. Its totient is φ = 14990976.

The previous prime is 39504313. The next prime is 39504343. The reversal of 39504340 is 4340593.

39504340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 39504299 and 39504308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39504343) 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 15 ways as a sum of consecutive naturals, for example, 71947 + ... + 72493.

It is an arithmetic number, because the mean of its divisors is an integer number (1818264).

Almost surely, 2^39504340 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 39504340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43638336).

39504340 is an abundant number, since it is smaller than the sum of its proper divisors (47772332).

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

39504340 is a wasteful number, since it uses less digits than its factorization.

39504340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 736 (or 734 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 39504340 is about 6285.2478073661. The cubic root of 39504340 is about 340.5767029130.

The spelling of 39504340 in words is "thirty-nine million, five hundred four thousand, three hundred forty".