228824081 has 4 divisors (see below), whose sum is σ = 230009892. Its totient is φ = 227638272.

The previous prime is 228824039. The next prime is 228824083. The reversal of 228824081 is 180428822.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 48163600 + 180660481 = 6940^2 + 13441^2 .

It is a cyclic number.

It is not a de Polignac number, because 228824081 - 2⁶ = 228824017 is a prime.

It is a super-3 number, since 3×228824081³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228824083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 592616 + ... + 593001.

It is an arithmetic number, because the mean of its divisors is an integer number (57502473).

Almost surely, 2^228824081 is an apocalyptic number.

It is an amenable number.

228824081 is a deficient number, since it is larger than the sum of its proper divisors (1185811).

228824081 is a wasteful number, since it uses less digits than its factorization.

228824081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1185810.

The product of its (nonzero) digits is 16384, while the sum is 35.

The square root of 228824081 is about 15126.9323063204. The cubic root of 228824081 is about 611.6466136252.

The spelling of 228824081 in words is "two hundred twenty-eight million, eight hundred twenty-four thousand, eighty-one".