450023663 has 4 divisors (see below), whose sum is σ = 450258408. Its totient is φ = 449788920.

The previous prime is 450023633. The next prime is 450023669. The reversal of 450023663 is 366320054.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 450023663 - 2¹⁴ = 450007279 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 (450023669) 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, 114473 + ... + 118338.

It is an arithmetic number, because the mean of its divisors is an integer number (112564602).

Almost surely, 2^450023663 is an apocalyptic number.

450023663 is a deficient number, since it is larger than the sum of its proper divisors (234745).

450023663 is a wasteful number, since it uses less digits than its factorization.

450023663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234744.

The product of its (nonzero) digits is 12960, while the sum is 29.

The square root of 450023663 is about 21213.7611705233. The cubic root of 450023663 is about 766.3228641434.

The spelling of 450023663 in words is "four hundred fifty million, twenty-three thousand, six hundred sixty-three".