439641 has 16 divisors (see below), whose sum is σ = 686400. Its totient is φ = 277344.

The previous prime is 439639. The next prime is 439661. The reversal of 439641 is 146934.

It is not a de Polignac number, because 439641 - 2¹ = 439639 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (439601) 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, 85 + ... + 941.

It is an arithmetic number, because the mean of its divisors is an integer number (42900).

2⁴³⁹⁶⁴¹ is an apocalyptic number.

It is an amenable number.

439641 is a deficient number, since it is larger than the sum of its proper divisors (246759).

439641 is a wasteful number, since it uses less digits than its factorization.

439641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 885 (or 879 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 439641 is about 663.0542964192. The cubic root of 439641 is about 76.0383578302.

The spelling of 439641 in words is "four hundred thirty-nine thousand, six hundred forty-one".