488408309 has 8 divisors (see below), whose sum is σ = 493091352. Its totient is φ = 483747840.

The previous prime is 488408299. The next prime is 488408311. The reversal of 488408309 is 903804884.

It can be written as a sum of positive squares in 4 ways, for example, as 970225 + 487438084 = 985^2 + 22078^2 .

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 488408309 - 2⁴ = 488408293 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 488408309.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (488408009) 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, 39539 + ... + 50399.

It is an arithmetic number, because the mean of its divisors is an integer number (61636419).

Almost surely, 2^488408309 is an apocalyptic number.

It is an amenable number.

488408309 is a deficient number, since it is larger than the sum of its proper divisors (4683043).

488408309 is a wasteful number, since it uses less digits than its factorization.

488408309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11287.

The product of its (nonzero) digits is 221184, while the sum is 44.

The square root of 488408309 is about 22099.9617420483. The cubic root of 488408309 is about 787.5189528990.

The spelling of 488408309 in words is "four hundred eighty-eight million, four hundred eight thousand, three hundred nine".