228130832 has 10 divisors (see below), whose sum is σ = 442003518. Its totient is φ = 114065408.

The previous prime is 228130817. The next prime is 228130843. The reversal of 228130832 is 238031822.

It can be written as a sum of positive squares in only one way, i.e., 228130816 + 16 = 15104^2 + 4^2 .

It is a junction number, because it is equal to n+sod(n) for n = 228130795 and 228130804.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7129073 + ... + 7129104.

Almost surely, 2^228130832 is an apocalyptic number.

It is an amenable number.

228130832 is a deficient number, since it is larger than the sum of its proper divisors (213872686).

228130832 is a wasteful number, since it uses less digits than its factorization.

228130832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14258185 (or 14258179 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 228130832 is about 15104.0005296610. Note that the first 3 decimals coincide. The cubic root of 228130832 is about 611.0283040882.

The spelling of 228130832 in words is "two hundred twenty-eight million, one hundred thirty thousand, eight hundred thirty-two".