228117030 has 64 divisors (see below), whose sum is σ = 564350976. Its totient is φ = 58976000.

The previous prime is 228117017. The next prime is 228117031. The reversal of 228117030 is 30711822.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228117031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 234445 + ... + 235415.

It is an arithmetic number, because the mean of its divisors is an integer number (8817984).

Almost surely, 2^228117030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228117030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (282175488).

228117030 is an abundant number, since it is smaller than the sum of its proper divisors (336233946).

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

228117030 is a wasteful number, since it uses less digits than its factorization.

228117030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1213.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 228117030 is about 15103.5436239314. The cubic root of 228117030 is about 611.0159813600.

Adding to 228117030 its reverse (30711822), we get a palindrome (258828852).

The spelling of 228117030 in words is "two hundred twenty-eight million, one hundred seventeen thousand, thirty".