39380439 has 16 divisors (see below), whose sum is σ = 62618112. Its totient is φ = 21524448.

The previous prime is 39380401. The next prime is 39380461. The reversal of 39380439 is 93408393.

It is not a de Polignac number, because 39380439 - 2⁹ = 39379927 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 39380397 and 39380406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39380479) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40284 + ... + 41249.

It is an arithmetic number, because the mean of its divisors is an integer number (3913632).

Almost surely, 2^39380439 is an apocalyptic number.

39380439 is a deficient number, since it is larger than the sum of its proper divisors (23237673).

39380439 is a wasteful number, since it uses less digits than its factorization.

39380439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81566.

The product of its (nonzero) digits is 69984, while the sum is 39.

The square root of 39380439 is about 6275.3835739339. The cubic root of 39380439 is about 340.2202696085.

The spelling of 39380439 in words is "thirty-nine million, three hundred eighty thousand, four hundred thirty-nine".