228656896 has 72 divisors (see below), whose sum is σ = 496315904. Its totient is φ = 104509440.

The previous prime is 228656891. The next prime is 228656903. The reversal of 228656896 is 698656822.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228656891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 422386 + ... + 422926.

Almost surely, 2^228656896 is an apocalyptic number.

228656896 is a gapful number since it is divisible by the number (26) 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 228656896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (248157952).

228656896 is an abundant number, since it is smaller than the sum of its proper divisors (267659008).

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

228656896 is a wasteful number, since it uses less digits than its factorization.

228656896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697 (or 683 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 52.

The square root of 228656896 is about 15121.4052257057. The cubic root of 228656896 is about 611.4976155347.

It can be divided in two parts, 2286 and 56896, that multiplied together give a triangular number (130064256 = T₁₆₁₂₈).

The spelling of 228656896 in words is "two hundred twenty-eight million, six hundred fifty-six thousand, eight hundred ninety-six".