450321223 has 16 divisors (see below), whose sum is σ = 521418240. Its totient is φ = 387814680.

The previous prime is 450321187. The next prime is 450321229. The reversal of 450321223 is 322123054.

It is not a de Polignac number, because 450321223 - 2⁹ = 450320711 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 450321194 and 450321203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450321229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16386 + ... + 34192.

It is an arithmetic number, because the mean of its divisors is an integer number (32588640).

Almost surely, 2^450321223 is an apocalyptic number.

450321223 is a deficient number, since it is larger than the sum of its proper divisors (71097017).

450321223 is a wasteful number, since it uses less digits than its factorization.

450321223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17859 (or 17837 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 450321223 is about 21220.7733836446. The cubic root of 450321223 is about 766.4917269616.

Adding to 450321223 its reverse (322123054), we get a palindrome (772444277).

The spelling of 450321223 in words is "four hundred fifty million, three hundred twenty-one thousand, two hundred twenty-three".