455439 has 4 divisors (see below), whose sum is σ = 607256. Its totient is φ = 303624.

The previous prime is 455437. The next prime is 455443. The reversal of 455439 is 934554.

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

It is not a de Polignac number, because 455439 - 2¹ = 455437 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (455431) 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, 75904 + ... + 75909.

It is an arithmetic number, because the mean of its divisors is an integer number (151814).

2⁴⁵⁵⁴³⁹ is an apocalyptic number.

455439 is a deficient number, since it is larger than the sum of its proper divisors (151817).

455439 is a wasteful number, since it uses less digits than its factorization.

455439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151816.

The product of its digits is 10800, while the sum is 30.

The square root of 455439 is about 674.8622081581. The cubic root of 455439 is about 76.9384452115.

The spelling of 455439 in words is "four hundred fifty-five thousand, four hundred thirty-nine".