489952945 has 4 divisors (see below), whose sum is σ = 587943540. Its totient is φ = 391962352.

The previous prime is 489952849. The next prime is 489952949. The reversal of 489952945 is 549259984.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 296631729 + 193321216 = 17223^2 + 13904^2 .

It is a cyclic number.

It is not a de Polignac number, because 489952945 - 2¹⁵ = 489920177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (489952949) 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, 48995290 + ... + 48995299.

It is an arithmetic number, because the mean of its divisors is an integer number (146985885).

Almost surely, 2^489952945 is an apocalyptic number.

It is an amenable number.

489952945 is a deficient number, since it is larger than the sum of its proper divisors (97990595).

489952945 is an equidigital number, since it uses as much as digits as its factorization.

489952945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97990594.

The product of its digits is 4665600, while the sum is 55.

The square root of 489952945 is about 22134.8807315513. The cubic root of 489952945 is about 788.3482795055.

The spelling of 489952945 in words is "four hundred eighty-nine million, nine hundred fifty-two thousand, nine hundred forty-five".