2005458445 has 8 divisors (see below), whose sum is σ = 2409376536. Its totient is φ = 1602482496.

The previous prime is 2005458437. The next prime is 2005458451. The reversal of 2005458445 is 5448545002.

It can be written as a sum of positive squares in 4 ways, for example, as 49519369 + 1955939076 = 7037^2 + 44226^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2005458445 - 2³ = 2005458437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 230842 + ... + 239371.

It is an arithmetic number, because the mean of its divisors is an integer number (301172067).

Almost surely, 2^2005458445 is an apocalyptic number.

It is an amenable number.

2005458445 is a deficient number, since it is larger than the sum of its proper divisors (403918091).

2005458445 is an equidigital number, since it uses as much as digits as its factorization.

2005458445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471071.

The product of its (nonzero) digits is 128000, while the sum is 37.

The square root of 2005458445 is about 44782.3452378278. The cubic root of 2005458445 is about 1261.0662103525.

The spelling of 2005458445 in words is "two billion, five million, four hundred fifty-eight thousand, four hundred forty-five".