228472 has 8 divisors (see below), whose sum is σ = 428400. Its totient is φ = 114232.

The previous prime is 228469. The next prime is 228479. The reversal of 228472 is 274822.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14272 + ... + 14287.

It is an arithmetic number, because the mean of its divisors is an integer number (53550).

2²²⁸⁴⁷² is an apocalyptic number.

It is an amenable number.

228472 is a deficient number, since it is larger than the sum of its proper divisors (199928).

228472 is a wasteful number, since it uses less digits than its factorization.

228472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28565 (or 28561 counting only the distinct ones).

The product of its digits is 1792, while the sum is 25.

The square root of 228472 is about 477.9874475339. The cubic root of 228472 is about 61.1332748502.

The spelling of 228472 in words is "two hundred twenty-eight thousand, four hundred seventy-two".