488985409 has 4 divisors (see below), whose sum is σ = 533438640. Its totient is φ = 444532180.

The previous prime is 488985397. The next prime is 488985479. The reversal of 488985409 is 904589884.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 488985409 - 2⁷ = 488985281 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 488985409.

It is not an unprimeable number, because it can be changed into a prime (488985479) 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 3 ways as a sum of consecutive naturals, for example, 22226599 + ... + 22226620.

It is an arithmetic number, because the mean of its divisors is an integer number (133359660).

Almost surely, 2^488985409 is an apocalyptic number.

It is an amenable number.

488985409 is a deficient number, since it is larger than the sum of its proper divisors (44453231).

488985409 is a wasteful number, since it uses less digits than its factorization.

488985409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44453230.

The product of its (nonzero) digits is 3317760, while the sum is 55.

The square root of 488985409 is about 22113.0144711208. The cubic root of 488985409 is about 787.8290065258.

The spelling of 488985409 in words is "four hundred eighty-eight million, nine hundred eighty-five thousand, four hundred nine".