450831 has 8 divisors (see below), whose sum is σ = 607360. Its totient is φ = 297432.

The previous prime is 450829. The next prime is 450839. The reversal of 450831 is 138054.

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

It is not a de Polignac number, because 450831 - 2¹ = 450829 is a prime.

It is a super-2 number, since 2×450831² = 406497181122, 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 = 450798 and 450807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 421 + ... + 1038.

It is an arithmetic number, because the mean of its divisors is an integer number (75920).

2⁴⁵⁰⁸³¹ is an apocalyptic number.

450831 is a deficient number, since it is larger than the sum of its proper divisors (156529).

450831 is a wasteful number, since it uses less digits than its factorization.

450831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1565.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 450831 is about 671.4394983913. The cubic root of 450831 is about 76.6780848358.

Adding to 450831 its reverse (138054), we get a palindrome (588885).

The spelling of 450831 in words is "four hundred fifty thousand, eight hundred thirty-one".