39982389 has 16 divisors (see below), whose sum is σ = 55454784. Its totient is φ = 25603200.

The previous prime is 39982373. The next prime is 39982391. The reversal of 39982389 is 98328993.

It is not a de Polignac number, because 39982389 - 2⁴ = 39982373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39982309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5329 + ... + 10409.

It is an arithmetic number, because the mean of its divisors is an integer number (3465924).

Almost surely, 2^39982389 is an apocalyptic number.

It is an amenable number.

39982389 is a deficient number, since it is larger than the sum of its proper divisors (15472395).

39982389 is a wasteful number, since it uses less digits than its factorization.

39982389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5188.

The product of its digits is 839808, while the sum is 51.

The square root of 39982389 is about 6323.1628952606. The cubic root of 39982389 is about 341.9449913236.

The spelling of 39982389 in words is "thirty-nine million, nine hundred eighty-two thousand, three hundred eighty-nine".