39449 has 4 divisors (see below), whose sum is σ = 39936. Its totient is φ = 38964.

The previous prime is 39443. The next prime is 39451. The reversal of 39449 is 94493.

It is a happy number.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 94493 = 7 ⋅13499.

It is a cyclic number.

It is not a de Polignac number, because 39449 - 2¹² = 35353 is a prime.

It is a Duffinian number.

Its product of digits (3888) is a multiple of the sum of its prime divisors (486).

It is not an unprimeable number, because it can be changed into a prime (39443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89 + ... + 294.

It is an arithmetic number, because the mean of its divisors is an integer number (9984).

2³⁹⁴⁴⁹ is an apocalyptic number.

It is an amenable number.

39449 is a deficient number, since it is larger than the sum of its proper divisors (487).

39449 is a wasteful number, since it uses less digits than its factorization.

39449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486.

The product of its digits is 3888, while the sum is 29.

The square root of 39449 is about 198.6177232777. The cubic root of 39449 is about 34.0417595310.

It can be divided in two parts, 394 and 49, that multiplied together give a triangular number (19306 = T₁₉₆).

The spelling of 39449 in words is "thirty-nine thousand, four hundred forty-nine".