228563424 has 96 divisors (see below), whose sum is σ = 672215040. Its totient is φ = 75551616.

The previous prime is 228563417. The next prime is 228563437. The reversal of 228563424 is 424365822.

228563424 is a `hidden beast` number, since 228 + 5 + 6 + 3 + 424 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108687 + ... + 110769.

It is an arithmetic number, because the mean of its divisors is an integer number (7002240).

Almost surely, 2^228563424 is an apocalyptic number.

228563424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228563424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (336107520).

228563424 is an abundant number, since it is smaller than the sum of its proper divisors (443651616).

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

228563424 is a wasteful number, since it uses less digits than its factorization.

228563424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2229 (or 2215 counting only the distinct ones).

The product of its digits is 92160, while the sum is 36.

The square root of 228563424 is about 15118.3141917345. The cubic root of 228563424 is about 611.4142800564.

The spelling of 228563424 in words is "two hundred twenty-eight million, five hundred sixty-three thousand, four hundred twenty-four".