450643645 has 8 divisors (see below), whose sum is σ = 544354560. Its totient is φ = 358126800.

The previous prime is 450643631. The next prime is 450643657. The reversal of 450643645 is 546346054.

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

It is not a de Polignac number, because 450643645 - 2⁹ = 450643133 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 297685 + ... + 299194.

It is an arithmetic number, because the mean of its divisors is an integer number (68044320).

Almost surely, 2^450643645 is an apocalyptic number.

It is an amenable number.

450643645 is a deficient number, since it is larger than the sum of its proper divisors (93710915).

450643645 is a wasteful number, since it uses less digits than its factorization.

450643645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 597035.

The product of its (nonzero) digits is 172800, while the sum is 37.

The square root of 450643645 is about 21228.3688728079. The cubic root of 450643645 is about 766.6746148094.

Adding to 450643645 its reverse (546346054), we get a palindrome (996989699).

It can be divided in two parts, 45064364 and 5, that added together give a square (45064369 = 6713²).

The spelling of 450643645 in words is "four hundred fifty million, six hundred forty-three thousand, six hundred forty-five".