228626178 has 64 divisors (see below), whose sum is σ = 519450624. Its totient is φ = 66456000.

The previous prime is 228626171. The next prime is 228626191. The reversal of 228626178 is 871626822.

It is a happy number.

228626178 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (228626171) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 267600 + ... + 268452.

It is an arithmetic number, because the mean of its divisors is an integer number (8116416).

Almost surely, 2^228626178 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228626178, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (259725312).

228626178 is an abundant number, since it is smaller than the sum of its proper divisors (290824446).

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

228626178 is a wasteful number, since it uses less digits than its factorization.

228626178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1031.

The product of its digits is 129024, while the sum is 42.

The square root of 228626178 is about 15120.3894791106. The cubic root of 228626178 is about 611.4702312378.

The spelling of 228626178 in words is "two hundred twenty-eight million, six hundred twenty-six thousand, one hundred seventy-eight".