228758 has 8 divisors (see below), whose sum is σ = 358128. Its totient is φ = 109384.

The previous prime is 228757. The next prime is 228773. The reversal of 228758 is 857822.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228751) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2441 + ... + 2532.

It is an arithmetic number, because the mean of its divisors is an integer number (44766).

2²²⁸⁷⁵⁸ is an apocalyptic number.

228758 is a deficient number, since it is larger than the sum of its proper divisors (129370).

228758 is a wasteful number, since it uses less digits than its factorization.

228758 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4998.

The product of its digits is 8960, while the sum is 32.

The square root of 228758 is about 478.2865250036. The cubic root of 228758 is about 61.1587729800.

The spelling of 228758 in words is "two hundred twenty-eight thousand, seven hundred fifty-eight".