454905 has 24 divisors (see below), whose sum is σ = 861120. Its totient is φ = 220320.

The previous prime is 454891. The next prime is 454907. The reversal of 454905 is 509454.

454905 is nontrivially palindromic in base 4.

It is not a de Polignac number, because 454905 - 2⁴ = 454889 is a prime.

It is an alternating number because its digits alternate between even and odd.

454905 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (454907) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36 + ... + 954.

It is an arithmetic number, because the mean of its divisors is an integer number (35880).

2⁴⁵⁴⁹⁰⁵ is an apocalyptic number.

454905 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

454905 is a deficient number, since it is larger than the sum of its proper divisors (406215).

454905 is a wasteful number, since it uses less digits than its factorization.

454905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 941 (or 938 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 454905 is about 674.4664558004. The cubic root of 454905 is about 76.9083634679.

It can be divided in two parts, 45 and 4905, that added together give a triangular number (4950 = T₉₉).

The spelling of 454905 in words is "four hundred fifty-four thousand, nine hundred five".