228656801 has 4 divisors (see below), whose sum is σ = 232532400. Its totient is φ = 224781204.

The previous prime is 228656759. The next prime is 228656803. The reversal of 228656801 is 108656822.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-228656801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228656803) 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, 1937711 + ... + 1937828.

It is an arithmetic number, because the mean of its divisors is an integer number (58133100).

Almost surely, 2^228656801 is an apocalyptic number.

It is an amenable number.

228656801 is a deficient number, since it is larger than the sum of its proper divisors (3875599).

228656801 is an equidigital number, since it uses as much as digits as its factorization.

228656801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3875598.

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 228656801 is about 15121.4020844629. The cubic root of 228656801 is about 611.4975308484.

The spelling of 228656801 in words is "two hundred twenty-eight million, six hundred fifty-six thousand, eight hundred one".