455905 has 8 divisors (see below), whose sum is σ = 576000. Its totient is φ = 345456.

The previous prime is 455899. The next prime is 455921. The reversal of 455905 is 509554.

455905 = 209² + 210² + ... + 218².

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 455905 - 2⁹ = 455393 is a prime.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2305 + ... + 2494.

It is an arithmetic number, because the mean of its divisors is an integer number (72000).

2⁴⁵⁵⁹⁰⁵ is an apocalyptic number.

It is an amenable number.

455905 is a deficient number, since it is larger than the sum of its proper divisors (120095).

455905 is a wasteful number, since it uses less digits than its factorization.

455905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4823.

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 455905 is about 675.2073755521. The cubic root of 455905 is about 76.9646771138.

The spelling of 455905 in words is "four hundred fifty-five thousand, nine hundred five".