39678384 has 80 divisors (see below), whose sum is σ = 109020800. Its totient is φ = 12400128.

The previous prime is 39678383. The next prime is 39678413. The reversal of 39678384 is 48387693.

39678384 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39678383) 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, 126612 + ... + 126924.

It is an arithmetic number, because the mean of its divisors is an integer number (1362760).

Almost surely, 2^39678384 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 39678384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54510400).

39678384 is an abundant number, since it is smaller than the sum of its proper divisors (69342416).

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

39678384 is a wasteful number, since it uses less digits than its factorization.

39678384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482 (or 476 counting only the distinct ones).

The product of its digits is 870912, while the sum is 48.

The square root of 39678384 is about 6299.0780277752. The cubic root of 39678384 is about 341.0761290054.

The spelling of 39678384 in words is "thirty-nine million, six hundred seventy-eight thousand, three hundred eighty-four".