228403801 has 2 divisors, whose sum is σ = 228403802. Its totient is φ = 228403800.

The previous prime is 228403793. The next prime is 228403829. The reversal of 228403801 is 108304822.

It is an a-pointer prime, because the next prime (228403829) can be obtained adding 228403801 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 208369225 + 20034576 = 14435^2 + 4476^2 .

It is a cyclic number.

It is not a de Polignac number, because 228403801 - 2³ = 228403793 is a prime.

It is a super-2 number, since 2×228403801² = 104336592622495202, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 228403801.

It is not a weakly prime, because it can be changed into another prime (228403841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114201900 + 114201901.

It is an arithmetic number, because the mean of its divisors is an integer number (114201901).

Almost surely, 2^228403801 is an apocalyptic number.

It is an amenable number.

228403801 is a deficient number, since it is larger than the sum of its proper divisors (1).

228403801 is an equidigital number, since it uses as much as digits as its factorization.

228403801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 228403801 is about 15113.0341427524. The cubic root of 228403801 is about 611.2719147438.

The spelling of 228403801 in words is "two hundred twenty-eight million, four hundred three thousand, eight hundred one".