489451313 has 8 divisors (see below), whose sum is σ = 527724288. Its totient is φ = 451267344.

The previous prime is 489451309. The next prime is 489451321. The reversal of 489451313 is 313154984.

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 489451313 - 2² = 489451309 is a prime.

It is not an unprimeable number, because it can be changed into a prime (489451363) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10595 + ... + 33032.

It is an arithmetic number, because the mean of its divisors is an integer number (65965536).

Almost surely, 2^489451313 is an apocalyptic number.

It is an amenable number.

489451313 is a deficient number, since it is larger than the sum of its proper divisors (38272975).

489451313 is a wasteful number, since it uses less digits than its factorization.

489451313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44503.

The product of its digits is 51840, while the sum is 38.

The square root of 489451313 is about 22123.5465737300. The cubic root of 489451313 is about 788.0791408957.

The spelling of 489451313 in words is "four hundred eighty-nine million, four hundred fifty-one thousand, three hundred thirteen".