228413601 has 20 divisors (see below), whose sum is σ = 367459092. Its totient is φ = 140561568.

The previous prime is 228413597. The next prime is 228413629. The reversal of 228413601 is 106314822.

It can be written as a sum of positive squares in 2 ways, for example, as 75272976 + 153140625 = 8676^2 + 12375^2 .

It is not a de Polignac number, because 228413601 - 2² = 228413597 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228413651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 107406 + ... + 109511.

Almost surely, 2^228413601 is an apocalyptic number.

It is an amenable number.

228413601 is a deficient number, since it is larger than the sum of its proper divisors (139045491).

228413601 is a wasteful number, since it uses less digits than its factorization.

228413601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216942 (or 216933 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 228413601 is about 15113.3583627200. The cubic root of 228413601 is about 611.2806571247.

The spelling of 228413601 in words is "two hundred twenty-eight million, four hundred thirteen thousand, six hundred one".