450098391 has 16 divisors (see below), whose sum is σ = 632806400. Its totient is φ = 283782528.

The previous prime is 450098371. The next prime is 450098401. The reversal of 450098391 is 193890054.

It is not a de Polignac number, because 450098391 - 2¹⁰ = 450097367 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450098351) 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 15 ways as a sum of consecutive naturals, for example, 28095 + ... + 41103.

It is an arithmetic number, because the mean of its divisors is an integer number (39550400).

Almost surely, 2^450098391 is an apocalyptic number.

450098391 is a deficient number, since it is larger than the sum of its proper divisors (182708009).

450098391 is a wasteful number, since it uses less digits than its factorization.

450098391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13638.

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 450098391 is about 21215.5224069548. The cubic root of 450098391 is about 766.3652786579.

The spelling of 450098391 in words is "four hundred fifty million, ninety-eight thousand, three hundred ninety-one".