39409049 has 4 divisors (see below), whose sum is σ = 39437520. Its totient is φ = 39380580.

The previous prime is 39409003. The next prime is 39409079. The reversal of 39409049 is 94090493.

39409049 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 39409049 - 2²⁰ = 38360473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39409079) 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 3 ways as a sum of consecutive naturals, for example, 12047 + ... + 14964.

It is an arithmetic number, because the mean of its divisors is an integer number (9859380).

Almost surely, 2^39409049 is an apocalyptic number.

It is an amenable number.

39409049 is a deficient number, since it is larger than the sum of its proper divisors (28471).

39409049 is a wasteful number, since it uses less digits than its factorization.

39409049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28470.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 39409049 is about 6277.6627019935. The cubic root of 39409049 is about 340.3026399928.

The spelling of 39409049 in words is "thirty-nine million, four hundred nine thousand, forty-nine".