439413 has 16 divisors (see below), whose sum is σ = 665280. Its totient is φ = 255744.

The previous prime is 439409. The next prime is 439421. The reversal of 439413 is 314934.

It is not a de Polignac number, because 439413 - 2² = 439409 is a prime.

439413 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (439463) 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, 445 + ... + 1037.

It is an arithmetic number, because the mean of its divisors is an integer number (41580).

2⁴³⁹⁴¹³ is an apocalyptic number.

It is an amenable number.

439413 is a deficient number, since it is larger than the sum of its proper divisors (225867).

439413 is a wasteful number, since it uses less digits than its factorization.

439413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628.

The product of its digits is 1296, while the sum is 24.

The square root of 439413 is about 662.8823425013. The cubic root of 439413 is about 76.0252109343.

The spelling of 439413 in words is "four hundred thirty-nine thousand, four hundred thirteen".