489706945 has 16 divisors (see below), whose sum is σ = 723260160. Its totient is φ = 309968064.

The previous prime is 489706933. The next prime is 489706949. The reversal of 489706945 is 549607984.

It is a happy number.

It is not a de Polignac number, because 489706945 - 2¹⁹ = 489182657 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 489706892 and 489706901.

It is not an unprimeable number, because it can be changed into a prime (489706949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 537685 + ... + 538594.

It is an arithmetic number, because the mean of its divisors is an integer number (45203760).

Almost surely, 2^489706945 is an apocalyptic number.

It is an amenable number.

489706945 is a deficient number, since it is larger than the sum of its proper divisors (233553215).

489706945 is a wasteful number, since it uses less digits than its factorization.

489706945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1076304.

The product of its (nonzero) digits is 2177280, while the sum is 52.

The square root of 489706945 is about 22129.3231934463. The cubic root of 489706945 is about 788.2163170759.

The spelling of 489706945 in words is "four hundred eighty-nine million, seven hundred six thousand, nine hundred forty-five".