450449 has 4 divisors (see below), whose sum is σ = 476964. Its totient is φ = 423936.

The previous prime is 450431. The next prime is 450451. The reversal of 450449 is 944054.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 944054 = 2 ⋅472027.

It can be written as a sum of positive squares in 2 ways, for example, as 384400 + 66049 = 620^2 + 257^2 .

It is a cyclic number.

It is not a de Polignac number, because 450449 - 2⁸ = 450193 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 450449.

It is not an unprimeable number, because it can be changed into a prime (450479) 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, 13232 + ... + 13265.

It is an arithmetic number, because the mean of its divisors is an integer number (119241).

2⁴⁵⁰⁴⁴⁹ is an apocalyptic number.

It is an amenable number.

450449 is a deficient number, since it is larger than the sum of its proper divisors (26515).

450449 is a wasteful number, since it uses less digits than its factorization.

450449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26514.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 450449 is about 671.1549746519. The cubic root of 450449 is about 76.6564216514.

The spelling of 450449 in words is "four hundred fifty thousand, four hundred forty-nine".