457439 has 4 divisors (see below), whose sum is σ = 465000. Its totient is φ = 449880.

The previous prime is 457433. The next prime is 457459. The reversal of 457439 is 934754.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 457439 - 2⁸ = 457183 is a prime.

It is a Duffinian number.

Its product of digits (15120) is a multiple of the sum of its prime divisors (7560).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (457433) 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, 3689 + ... + 3810.

It is an arithmetic number, because the mean of its divisors is an integer number (116250).

2⁴⁵⁷⁴³⁹ is an apocalyptic number.

457439 is a deficient number, since it is larger than the sum of its proper divisors (7561).

457439 is an equidigital number, since it uses as much as digits as its factorization.

457439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7560.

The product of its digits is 15120, while the sum is 32.

The square root of 457439 is about 676.3423689227. The cubic root of 457439 is about 77.0509024194.

The spelling of 457439 in words is "four hundred fifty-seven thousand, four hundred thirty-nine".