454491 has 20 divisors (see below), whose sum is σ = 704704. Its totient is φ = 291600.

The previous prime is 454483. The next prime is 454501. The reversal of 454491 is 194454.

It is not a de Polignac number, because 454491 - 2³ = 454483 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (454451) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2421 + ... + 2601.

2⁴⁵⁴⁴⁹¹ is an apocalyptic number.

454491 is a deficient number, since it is larger than the sum of its proper divisors (250213).

454491 is a wasteful number, since it uses less digits than its factorization.

454491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224 (or 215 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 454491 is about 674.1594766819. The cubic root of 454491 is about 76.8850254623.

The spelling of 454491 in words is "four hundred fifty-four thousand, four hundred ninety-one".