450290873 has 4 divisors (see below), whose sum is σ = 450372468. Its totient is φ = 450209280.

The previous prime is 450290843. The next prime is 450290887. The reversal of 450290873 is 378092054.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 378092054 = 2 ⋅189046027.

It can be written as a sum of positive squares in 2 ways, for example, as 239228089 + 211062784 = 15467^2 + 14528^2 .

It is a cyclic number.

It is not a de Polignac number, because 450290873 - 2¹² = 450286777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (450290833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31868 + ... + 43773.

It is an arithmetic number, because the mean of its divisors is an integer number (112593117).

Almost surely, 2^450290873 is an apocalyptic number.

It is an amenable number.

450290873 is a deficient number, since it is larger than the sum of its proper divisors (81595).

450290873 is an equidigital number, since it uses as much as digits as its factorization.

450290873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81594.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 450290873 is about 21220.0582704195. The cubic root of 450290873 is about 766.4745069970.

The spelling of 450290873 in words is "four hundred fifty million, two hundred ninety thousand, eight hundred seventy-three".