228404527 has 16 divisors (see below), whose sum is σ = 251082720. Its totient is φ = 206502912.

The previous prime is 228404521. The next prime is 228404543. The reversal of 228404527 is 725404822.

It is a cyclic number.

It is not a de Polignac number, because 228404527 - 2¹¹ = 228402479 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 228404492 and 228404501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228404521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129868 + ... + 131614.

It is an arithmetic number, because the mean of its divisors is an integer number (15692670).

Almost surely, 2^228404527 is an apocalyptic number.

228404527 is a deficient number, since it is larger than the sum of its proper divisors (22678193).

228404527 is a wasteful number, since it uses less digits than its factorization.

228404527 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1962.

The product of its (nonzero) digits is 35840, while the sum is 34.

The square root of 228404527 is about 15113.0581617355. The cubic root of 228404527 is about 611.2725624022.

The spelling of 228404527 in words is "two hundred twenty-eight million, four hundred four thousand, five hundred twenty-seven".