228557 has 8 divisors (see below), whose sum is σ = 264576. Its totient is φ = 193392.

The previous prime is 228539. The next prime is 228559. The reversal of 228557 is 755822.

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 228557 - 2⁸ = 228301 is a prime.

It is a d-powerful number, because it can be written as 2 + 2¹⁵ + 5 + 8 + 5⁷ + 7⁶ .

It is a Duffinian number.

It is a plaindrome in base 11 and base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228559) 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, 563 + ... + 879.

It is an arithmetic number, because the mean of its divisors is an integer number (33072).

2²²⁸⁵⁵⁷ is an apocalyptic number.

It is an amenable number.

228557 is a deficient number, since it is larger than the sum of its proper divisors (36019).

228557 is a wasteful number, since it uses less digits than its factorization.

228557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427.

The product of its digits is 5600, while the sum is 29.

The square root of 228557 is about 478.0763537344. The cubic root of 228557 is about 61.1408551869.

The spelling of 228557 in words is "two hundred twenty-eight thousand, five hundred fifty-seven".