228655800 has 72 divisors (see below), whose sum is σ = 767908440. Its totient is φ = 60974400.

The previous prime is 228655781. The next prime is 228655829. The reversal of 228655800 is 8556822.

228655800 is a `hidden beast` number, since 22 + 86 + 558 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

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 pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 61716 + ... + 65315.

It is an arithmetic number, because the mean of its divisors is an integer number (10665395).

Almost surely, 2^228655800 is an apocalyptic number.

228655800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228655800 is an abundant number, since it is smaller than the sum of its proper divisors (539252640).

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

228655800 is a wasteful number, since it uses less digits than its factorization.

228655800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127053 (or 127041 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 228655800 is about 15121.3689856441. The cubic root of 228655800 is about 611.4966385214.

The spelling of 228655800 in words is "two hundred twenty-eight million, six hundred fifty-five thousand, eight hundred".