450680273 has 4 divisors (see below), whose sum is σ = 454668708. Its totient is φ = 446691840.

The previous prime is 450680267. The next prime is 450680287. The reversal of 450680273 is 372086054.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 372086054 = 2 ⋅186043027.

It can be written as a sum of positive squares in 2 ways, for example, as 126067984 + 324612289 = 11228^2 + 18017^2 .

It is a cyclic number.

It is not a de Polignac number, because 450680273 - 2¹⁰ = 450679249 is a prime.

It is a super-2 number, since 2×450680273² = 406225416942709058, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (450680203) 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, 1994048 + ... + 1994273.

It is an arithmetic number, because the mean of its divisors is an integer number (113667177).

Almost surely, 2^450680273 is an apocalyptic number.

It is an amenable number.

450680273 is a deficient number, since it is larger than the sum of its proper divisors (3988435).

450680273 is a wasteful number, since it uses less digits than its factorization.

450680273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3988434.

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 450680273 is about 21229.2315687591. The cubic root of 450680273 is about 766.6953858387.

The spelling of 450680273 in words is "four hundred fifty million, six hundred eighty thousand, two hundred seventy-three".