450534431 has 4 divisors (see below), whose sum is σ = 450886872. Its totient is φ = 450181992.

The previous prime is 450534421. The next prime is 450534449. The reversal of 450534431 is 134435054.

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 450534431 - 2¹⁸ = 450272287 is a prime.

It is a super-2 number, since 2×450534431² = 405962547032987522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 450534394 and 450534403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450534421) 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, 174296 + ... + 176861.

It is an arithmetic number, because the mean of its divisors is an integer number (112721718).

Almost surely, 2^450534431 is an apocalyptic number.

450534431 is a deficient number, since it is larger than the sum of its proper divisors (352441).

450534431 is a wasteful number, since it uses less digits than its factorization.

450534431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352440.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 450534431 is about 21225.7963572630. The cubic root of 450534431 is about 766.6126749838.

Adding to 450534431 its reverse (134435054), we get a palindrome (584969485).

The spelling of 450534431 in words is "four hundred fifty million, five hundred thirty-four thousand, four hundred thirty-one".