450981773 has 4 divisors (see below), whose sum is σ = 491980128. Its totient is φ = 409983420.

The previous prime is 450981743. The next prime is 450981793. The reversal of 450981773 is 377189054.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 450981773 - 2¹⁸ = 450719629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450981703) 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, 20499161 + ... + 20499182.

It is an arithmetic number, because the mean of its divisors is an integer number (122995032).

Almost surely, 2^450981773 is an apocalyptic number.

It is an amenable number.

450981773 is a deficient number, since it is larger than the sum of its proper divisors (40998355).

450981773 is a wasteful number, since it uses less digits than its factorization.

450981773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40998354.

The product of its (nonzero) digits is 211680, while the sum is 44.

The square root of 450981773 is about 21236.3314393047. The cubic root of 450981773 is about 766.8663179047.

The spelling of 450981773 in words is "four hundred fifty million, nine hundred eighty-one thousand, seven hundred seventy-three".