450642693 has 8 divisors (see below), whose sum is σ = 601601056. Its totient is φ = 300056400.

The previous prime is 450642679. The next prime is 450642701. The reversal of 450642693 is 396246054.

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

It is a de Polignac number, because none of the positive numbers 2^k-450642693 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 (450642293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90178 + ... + 95043.

It is an arithmetic number, because the mean of its divisors is an integer number (75200132).

Almost surely, 2^450642693 is an apocalyptic number.

It is an amenable number.

450642693 is a deficient number, since it is larger than the sum of its proper divisors (150958363).

450642693 is a wasteful number, since it uses less digits than its factorization.

450642693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186035.

The product of its (nonzero) digits is 155520, while the sum is 39.

The square root of 450642693 is about 21228.3464499711. The cubic root of 450642693 is about 766.6740749337.

The spelling of 450642693 in words is "four hundred fifty million, six hundred forty-two thousand, six hundred ninety-three".