459439 has 4 divisors (see below), whose sum is σ = 483640. Its totient is φ = 435240.

The previous prime is 459427. The next prime is 459443. The reversal of 459439 is 934954.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 934954 = 2 ⋅467477.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-459439 is a prime.

It is a super-2 number, since 2×459439² = 422168389442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (459469) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12072 + ... + 12109.

It is an arithmetic number, because the mean of its divisors is an integer number (120910).

2⁴⁵⁹⁴³⁹ is an apocalyptic number.

459439 is a deficient number, since it is larger than the sum of its proper divisors (24201).

459439 is a wasteful number, since it uses less digits than its factorization.

459439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24200.

The product of its digits is 19440, while the sum is 34.

The square root of 459439 is about 677.8192974532. The cubic root of 459439 is about 77.1630323154.

It can be divided in two parts, 459 and 439, that added together give a palindrome (898).

The spelling of 459439 in words is "four hundred fifty-nine thousand, four hundred thirty-nine".