228173856 has 96 divisors (see below), whose sum is σ = 635040000. Its totient is φ = 71608320.

The previous prime is 228173843. The next prime is 228173863. The reversal of 228173856 is 658371822.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113145 + ... + 115143.

It is an arithmetic number, because the mean of its divisors is an integer number (6615000).

Almost surely, 2^228173856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228173856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (317520000).

228173856 is an abundant number, since it is smaller than the sum of its proper divisors (406866144).

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

228173856 is a wasteful number, since it uses less digits than its factorization.

228173856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2082 (or 2074 counting only the distinct ones).

The product of its digits is 161280, while the sum is 42.

The square root of 228173856 is about 15105.4247209405. The cubic root of 228173856 is about 611.0667136696.

The spelling of 228173856 in words is "two hundred twenty-eight million, one hundred seventy-three thousand, eight hundred fifty-six".