450198393 has 8 divisors (see below), whose sum is σ = 609223968. Its totient is φ = 295652544.

The previous prime is 450198319. The next prime is 450198439. The reversal of 450198393 is 393891054.

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

It is not a de Polignac number, because 450198393 - 2²⁰ = 449149817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (450198493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1119696 + ... + 1120097.

It is an arithmetic number, because the mean of its divisors is an integer number (76152996).

Almost surely, 2^450198393 is an apocalyptic number.

It is an amenable number.

450198393 is a deficient number, since it is larger than the sum of its proper divisors (159025575).

450198393 is a wasteful number, since it uses less digits than its factorization.

450198393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2239863.

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 450198393 is about 21217.8790881652. The cubic root of 450198393 is about 766.4220309792.

The spelling of 450198393 in words is "four hundred fifty million, one hundred ninety-eight thousand, three hundred ninety-three".