489913245 has 16 divisors (see below), whose sum is σ = 870957120. Its totient is φ = 261286992.

The previous prime is 489913241. The next prime is 489913247. The reversal of 489913245 is 542319984.

It is not a de Polignac number, because 489913245 - 2² = 489913241 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 489913245.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489913241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1814359 + ... + 1814628.

It is an arithmetic number, because the mean of its divisors is an integer number (54434820).

Almost surely, 2^489913245 is an apocalyptic number.

489913245 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

489913245 is a deficient number, since it is larger than the sum of its proper divisors (381043875).

489913245 is a wasteful number, since it uses less digits than its factorization.

489913245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3629001 (or 3628995 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 489913245 is about 22133.9839387310. The cubic root of 489913245 is about 788.3269861192.

The spelling of 489913245 in words is "four hundred eighty-nine million, nine hundred thirteen thousand, two hundred forty-five".