228458132 has 12 divisors (see below), whose sum is σ = 456916320. Its totient is φ = 97910616.

The previous prime is 228458129. The next prime is 228458159. The reversal of 228458132 is 231854822.

228458132 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 228458092 and 228458101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4079582 + ... + 4079637.

It is an arithmetic number, because the mean of its divisors is an integer number (38076360).

Almost surely, 2^228458132 is an apocalyptic number.

It is an amenable number.

228458132 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

228458132 is a wasteful number, since it uses less digits than its factorization.

228458132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8159230 (or 8159228 counting only the distinct ones).

The product of its digits is 30720, while the sum is 35.

The square root of 228458132 is about 15114.8315240363. The cubic root of 228458132 is about 611.3203791758.

The spelling of 228458132 in words is "two hundred twenty-eight million, four hundred fifty-eight thousand, one hundred thirty-two".