221486848 has 36 divisors (see below), whose sum is σ = 482306328. Its totient is φ = 100674560.

The previous prime is 221486821. The next prime is 221486873. The reversal of 221486848 is 848684122.

It is a congruent number.

It is an unprimeable number.

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, 36511 + ... + 42142.

It is an arithmetic number, because the mean of its divisors is an integer number (13397398).

Almost surely, 2^221486848 is an apocalyptic number.

It is an amenable number.

221486848 is an abundant number, since it is smaller than the sum of its proper divisors (260819480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221486848 is an equidigital number, since it uses as much as digits as its factorization.

221486848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78680 (or 78666 counting only the distinct ones).

The product of its digits is 196608, while the sum is 43.

The square root of 221486848 is about 14882.4342094968. The cubic root of 221486848 is about 605.0379941078.

The spelling of 221486848 in words is "two hundred twenty-one million, four hundred eighty-six thousand, eight hundred forty-eight".