451442323 has 4 divisors (see below), whose sum is σ = 451486728. Its totient is φ = 451397920.

The previous prime is 451442317. The next prime is 451442347. The reversal of 451442323 is 323244154.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 451442323 - 2¹⁷ = 451311251 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 451442291 and 451442300.

It is not an unprimeable number, because it can be changed into a prime (451442363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1440 + ... + 30082.

It is an arithmetic number, because the mean of its divisors is an integer number (112871682).

Almost surely, 2^451442323 is an apocalyptic number.

451442323 is a deficient number, since it is larger than the sum of its proper divisors (44405).

451442323 is a wasteful number, since it uses less digits than its factorization.

451442323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44404.

The product of its digits is 11520, while the sum is 28.

The square root of 451442323 is about 21247.1721177196. The cubic root of 451442323 is about 767.1272745904.

Adding to 451442323 its reverse (323244154), we get a palindrome (774686477).

The spelling of 451442323 in words is "four hundred fifty-one million, four hundred forty-two thousand, three hundred twenty-three".