228409201 has 8 divisors (see below), whose sum is σ = 232637184. Its totient is φ = 224209440.

The previous prime is 228409187. The next prime is 228409213. The reversal of 228409201 is 102904822.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 228409201 - 2¹⁷ = 228278129 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 228409201.

It is not an unprimeable number, because it can be changed into a prime (228449201) 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, 9640 + ... + 23446.

It is an arithmetic number, because the mean of its divisors is an integer number (29079648).

Almost surely, 2^228409201 is an apocalyptic number.

It is an amenable number.

228409201 is a deficient number, since it is larger than the sum of its proper divisors (4227983).

228409201 is a wasteful number, since it uses less digits than its factorization.

228409201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14111.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 228409201 is about 15113.2127954317. The cubic root of 228409201 is about 611.2767320050.

It can be divided in two parts, 22840 and 9201, that added together give a square (32041 = 179²).

The spelling of 228409201 in words is "two hundred twenty-eight million, four hundred nine thousand, two hundred one".