228648975 has 12 divisors (see below), whose sum is σ = 378033096. Its totient is φ = 121946080.

The previous prime is 228648971. The next prime is 228649019. The reversal of 228648975 is 579846822.

It is not a de Polignac number, because 228648975 - 2² = 228648971 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228648971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1524252 + ... + 1524401.

It is an arithmetic number, because the mean of its divisors is an integer number (31502758).

Almost surely, 2^228648975 is an apocalyptic number.

228648975 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

228648975 is a deficient number, since it is larger than the sum of its proper divisors (149384121).

228648975 is a wasteful number, since it uses less digits than its factorization.

228648975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3048666 (or 3048661 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 51.

The square root of 228648975 is about 15121.1433099485. The cubic root of 228648975 is about 611.4905544042.

The spelling of 228648975 in words is "two hundred twenty-eight million, six hundred forty-eight thousand, nine hundred seventy-five".