39389984 has 48 divisors (see below), whose sum is σ = 81829440. Its totient is φ = 18627840.

The previous prime is 39389951. The next prime is 39389989. The reversal of 39389984 is 48998393.

It is not an unprimeable number, because it can be changed into a prime (39389989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79979 + ... + 80469.

It is an arithmetic number, because the mean of its divisors is an integer number (1704780).

Almost surely, 2^39389984 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 39389984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40914720).

39389984 is an abundant number, since it is smaller than the sum of its proper divisors (42439456).

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

39389984 is a wasteful number, since it uses less digits than its factorization.

39389984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633 (or 625 counting only the distinct ones).

The product of its digits is 1679616, while the sum is 53.

The square root of 39389984 is about 6276.1440391374. The cubic root of 39389984 is about 340.2477548290.

The spelling of 39389984 in words is "thirty-nine million, three hundred eighty-nine thousand, nine hundred eighty-four".