220824856 has 16 divisors (see below), whose sum is σ = 473196240. Its totient is φ = 94639200.

The previous prime is 220824853. The next prime is 220824889. The reversal of 220824856 is 658428022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220824853) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1971595 + ... + 1971706.

It is an arithmetic number, because the mean of its divisors is an integer number (29574765).

Almost surely, 2^220824856 is an apocalyptic number.

It is an amenable number.

220824856 is an abundant number, since it is smaller than the sum of its proper divisors (252371384).

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

220824856 is a wasteful number, since it uses less digits than its factorization.

220824856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3943314 (or 3943310 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 37.

The square root of 220824856 is about 14860.1768495533. The cubic root of 220824856 is about 604.4346023464.

The spelling of 220824856 in words is "two hundred twenty million, eight hundred twenty-four thousand, eight hundred fifty-six".