450031321 has 16 divisors (see below), whose sum is σ = 488851200. Its totient is φ = 412933248.

The previous prime is 450031319. The next prime is 450031339. The reversal of 450031321 is 123130054.

It is a cyclic number.

It is not a de Polignac number, because 450031321 - 2¹ = 450031319 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (450031381) 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, 76725 + ... + 82381.

It is an arithmetic number, because the mean of its divisors is an integer number (30553200).

Almost surely, 2^450031321 is an apocalyptic number.

It is an amenable number.

450031321 is a deficient number, since it is larger than the sum of its proper divisors (38819879).

450031321 is a wasteful number, since it uses less digits than its factorization.

450031321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5808.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 450031321 is about 21213.9416658008. The cubic root of 450031321 is about 766.3272109276.

Adding to 450031321 its reverse (123130054), we get a palindrome (573161375).

The spelling of 450031321 in words is "four hundred fifty million, thirty-one thousand, three hundred twenty-one".