451443345 has 16 divisors (see below), whose sum is σ = 722705280. Its totient is φ = 240637824.

The previous prime is 451443323. The next prime is 451443353. The reversal of 451443345 is 543344154.

It is a happy number.

It is not a de Polignac number, because 451443345 - 2⁸ = 451443089 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24132 + ... + 38538.

It is an arithmetic number, because the mean of its divisors is an integer number (45169080).

Almost surely, 2^451443345 is an apocalyptic number.

It is an amenable number.

451443345 is a deficient number, since it is larger than the sum of its proper divisors (271261935).

451443345 is a wasteful number, since it uses less digits than its factorization.

451443345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16504.

The product of its digits is 57600, while the sum is 33.

The square root of 451443345 is about 21247.1961679653. The cubic root of 451443345 is about 767.1278534782.

Adding to 451443345 its reverse (543344154), we get a palindrome (994787499).

The spelling of 451443345 in words is "four hundred fifty-one million, four hundred forty-three thousand, three hundred forty-five".