228158802 has 128 divisors (see below), whose sum is σ = 575078400. Its totient is φ = 66624768.

The previous prime is 228158789. The next prime is 228158803. The reversal of 228158802 is 208851822.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (228158803) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1796463 + ... + 1796589.

It is an arithmetic number, because the mean of its divisors is an integer number (4492800).

Almost surely, 2^228158802 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228158802, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (287539200).

228158802 is an abundant number, since it is smaller than the sum of its proper divisors (346919598).

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

228158802 is a wasteful number, since it uses less digits than its factorization.

228158802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277 (or 271 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 36.

The square root of 228158802 is about 15104.9264149151. The cubic root of 228158802 is about 611.0532747934.

The spelling of 228158802 in words is "two hundred twenty-eight million, one hundred fifty-eight thousand, eight hundred two".