445818453 has 48 divisors (see below), whose sum is σ = 654044160. Its totient is φ = 269815392.

The previous prime is 445818449. The next prime is 445818463. The reversal of 445818453 is 354818544.

It is a happy number.

It is not a de Polignac number, because 445818453 - 2² = 445818449 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445818403) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3207258 + ... + 3207396.

It is an arithmetic number, because the mean of its divisors is an integer number (13625920).

Almost surely, 2^445818453 is an apocalyptic number.

445818453 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

It is an amenable number.

445818453 is a deficient number, since it is larger than the sum of its proper divisors (208225707).

445818453 is a wasteful number, since it uses less digits than its factorization.

445818453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278 (or 255 counting only the distinct ones).

The product of its digits is 307200, while the sum is 42.

The square root of 445818453 is about 21114.4133946458. The cubic root of 445818453 is about 763.9284429248.

Subtracting from 445818453 its reverse (354818544), we obtain a palindrome (90999909).

The spelling of 445818453 in words is "four hundred forty-five million, eight hundred eighteen thousand, four hundred fifty-three".