228730120 has 16 divisors (see below), whose sum is σ = 514642860. Its totient is φ = 91492032.

The previous prime is 228730093. The next prime is 228730127. The reversal of 228730120 is 21037822.

It can be written as a sum of positive squares in 2 ways, for example, as 225540324 + 3189796 = 15018^2 + 1786^2 .

It is not an unprimeable number, because it can be changed into a prime (228730127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2859087 + ... + 2859166.

Almost surely, 2^228730120 is an apocalyptic number.

228730120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228730120 is an abundant number, since it is smaller than the sum of its proper divisors (285912740).

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

228730120 is a wasteful number, since it uses less digits than its factorization.

228730120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5718264 (or 5718260 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 228730120 is about 15123.8262354472. The cubic root of 228730120 is about 611.5628829337.

Adding to 228730120 its reverse (21037822), we get a palindrome (249767942).

The spelling of 228730120 in words is "two hundred twenty-eight million, seven hundred thirty thousand, one hundred twenty".