450332021 has 8 divisors (see below), whose sum is σ = 456412320. Its totient is φ = 444267472.

The previous prime is 450331993. The next prime is 450332027. The reversal of 450332021 is 120233054.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 450332021 - 2²⁶ = 383223157 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 450331984 and 450332002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450332027) 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 7 ways as a sum of consecutive naturals, for example, 60650 + ... + 67668.

It is an arithmetic number, because the mean of its divisors is an integer number (57051540).

Almost surely, 2^450332021 is an apocalyptic number.

It is an amenable number.

450332021 is a deficient number, since it is larger than the sum of its proper divisors (6080299).

450332021 is an equidigital number, since it uses as much as digits as its factorization.

450332021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7875.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 450332021 is about 21221.0278026301. The cubic root of 450332021 is about 766.4978533377.

Adding to 450332021 its reverse (120233054), we get a palindrome (570565075).

The spelling of 450332021 in words is "four hundred fifty million, three hundred thirty-two thousand, twenty-one".