228814992 has 120 divisors (see below), whose sum is σ = 745827264. Its totient is φ = 64127232.

The previous prime is 228814991. The next prime is 228815003. The reversal of 228814992 is 299418822.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (228814991) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51283 + ... + 55565.

Almost surely, 2^228814992 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 228814992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (372913632).

228814992 is an abundant number, since it is smaller than the sum of its proper divisors (517012272).

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

228814992 is a wasteful number, since it uses less digits than its factorization.

228814992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4357 (or 4348 counting only the distinct ones).

The product of its digits is 165888, while the sum is 45.

The square root of 228814992 is about 15126.6318789081. The cubic root of 228814992 is about 611.6385152210.

The spelling of 228814992 in words is "two hundred twenty-eight million, eight hundred fourteen thousand, nine hundred ninety-two".