305680485 has 48 divisors (see below), whose sum is σ = 569274048. Its totient is φ = 139476480.

The previous prime is 305680477. The next prime is 305680523. The reversal of 305680485 is 584086503.

It is a happy number.

It is not a de Polignac number, because 305680485 - 2³ = 305680477 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 25902 + ... + 35808.

It is an arithmetic number, because the mean of its divisors is an integer number (11859876).

Almost surely, 2^305680485 is an apocalyptic number.

It is an amenable number.

305680485 is a deficient number, since it is larger than the sum of its proper divisors (263593563).

305680485 is a wasteful number, since it uses less digits than its factorization.

305680485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9954 (or 9943 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 39.

The square root of 305680485 is about 17483.7205708625. The cubic root of 305680485 is about 673.6317854514.

The spelling of 305680485 in words is "three hundred five million, six hundred eighty thousand, four hundred eighty-five".