228658224 has 40 divisors (see below), whose sum is σ = 606670000. Its totient is φ = 74158848.

The previous prime is 228658181. The next prime is 228658247. The reversal of 228658224 is 422856822.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62599 + ... + 66150.

It is an arithmetic number, because the mean of its divisors is an integer number (15166750).

Almost surely, 2^228658224 is an apocalyptic number.

228658224 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

228658224 is an abundant number, since it is smaller than the sum of its proper divisors (378011776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

228658224 is a wasteful number, since it uses less digits than its factorization.

228658224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128797 (or 128791 counting only the distinct ones).

The product of its digits is 122880, while the sum is 39.

The square root of 228658224 is about 15121.4491369048. The cubic root of 228658224 is about 611.4987993568.

The spelling of 228658224 in words is "two hundred twenty-eight million, six hundred fifty-eight thousand, two hundred twenty-four".