1228680485 has 8 divisors (see below), whose sum is σ = 1474715256. Its totient is φ = 982745280.

The previous prime is 1228680437. The next prime is 1228680521. The reversal of 1228680485 is 5840868221.

It can be written as a sum of positive squares in 4 ways, for example, as 793999684 + 434680801 = 28178^2 + 20849^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1228680485 - 2⁶ = 1228680421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5675 + ... + 49895.

It is an arithmetic number, because the mean of its divisors is an integer number (184339407).

Almost surely, 2^1228680485 is an apocalyptic number.

It is an amenable number.

1228680485 is a deficient number, since it is larger than the sum of its proper divisors (246034771).

1228680485 is an equidigital number, since it uses as much as digits as its factorization.

1228680485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49783.

The product of its (nonzero) digits is 245760, while the sum is 44.

The square root of 1228680485 is about 35052.5389237356. The cubic root of 1228680485 is about 1071.0579936241.

The spelling of 1228680485 in words is "one billion, two hundred twenty-eight million, six hundred eighty thousand, four hundred eighty-five".