439481 has 6 divisors (see below), whose sum is σ = 511290. Its totient is φ = 376656.

The previous prime is 439471. The next prime is 439493. The reversal of 439481 is 184934.

It can be written as a sum of positive squares in only one way, i.e., 379456 + 60025 = 616^2 + 245^2 .

It is not a de Polignac number, because 439481 - 2¹⁴ = 423097 is a prime.

It is a super-2 number, since 2×439481² = 386287098722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (439421) 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 5 ways as a sum of consecutive naturals, for example, 4436 + ... + 4533.

It is an arithmetic number, because the mean of its divisors is an integer number (85215).

2⁴³⁹⁴⁸¹ is an apocalyptic number.

It is an amenable number.

439481 is a deficient number, since it is larger than the sum of its proper divisors (71809).

439481 is an equidigital number, since it uses as much as digits as its factorization.

439481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8983 (or 8976 counting only the distinct ones).

The product of its digits is 3456, while the sum is 29.

The square root of 439481 is about 662.9336316706. The cubic root of 439481 is about 76.0291324141.

The spelling of 439481 in words is "four hundred thirty-nine thousand, four hundred eighty-one".