450000321 has 4 divisors (see below), whose sum is σ = 600000432. Its totient is φ = 300000212.

The previous prime is 450000277. The next prime is 450000323. The reversal of 450000321 is 123000054.

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 a cyclic number.

It is not a de Polignac number, because 450000321 - 2⁷ = 450000193 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 450000321.

It is not an unprimeable number, because it can be changed into a prime (450000323) 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, 75000051 + ... + 75000056.

It is an arithmetic number, because the mean of its divisors is an integer number (150000108).

Almost surely, 2^450000321 is an apocalyptic number.

It is an amenable number.

450000321 is a deficient number, since it is larger than the sum of its proper divisors (150000111).

450000321 is a wasteful number, since it uses less digits than its factorization.

450000321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150000110.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 450000321 is about 21213.2110016376. The cubic root of 450000321 is about 766.3096146049.

Adding to 450000321 its reverse (123000054), we get a palindrome (573000375).

The spelling of 450000321 in words is "four hundred fifty million, three hundred twenty-one", and thus it is an aban number.