224657856 has 84 divisors (see below), whose sum is σ = 681849792. Its totient is φ = 70477824.

The previous prime is 224657827. The next prime is 224657857. The reversal of 224657856 is 658756422.

224657856 is a `hidden beast` number, since 2 + 24 + 6 + 578 + 56 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224657857) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1680 + ... + 21263.

Almost surely, 2^224657856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 224657856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (340924896).

224657856 is an abundant number, since it is smaller than the sum of its proper divisors (457191936).

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

224657856 is a wasteful number, since it uses less digits than its factorization.

224657856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22978 (or 22965 counting only the distinct ones).

The product of its digits is 806400, while the sum is 45.

The square root of 224657856 is about 14988.5908610516. The cubic root of 224657856 is about 607.9117485020.

The spelling of 224657856 in words is "two hundred twenty-four million, six hundred fifty-seven thousand, eight hundred fifty-six".