228372473 has 12 divisors (see below), whose sum is σ = 268252992. Its totient is φ = 190449360.

The previous prime is 228372467. The next prime is 228372479. The reversal of 228372473 is 374273822.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (228372467) and next prime (228372479).

It is not a de Polignac number, because 228372473 - 2⁶ = 228372409 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228372479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2333 + ... + 21498.

It is an arithmetic number, because the mean of its divisors is an integer number (22354416).

Almost surely, 2^228372473 is an apocalyptic number.

It is an amenable number.

228372473 is a deficient number, since it is larger than the sum of its proper divisors (39880519).

228372473 is an equidigital number, since it uses as much as digits as its factorization.

228372473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23912 (or 23875 counting only the distinct ones).

The product of its digits is 112896, while the sum is 38.

The square root of 228372473 is about 15111.9976508733. The cubic root of 228372473 is about 611.2439659939.

The spelling of 228372473 in words is "two hundred twenty-eight million, three hundred seventy-two thousand, four hundred seventy-three".