228648836 has 24 divisors (see below), whose sum is σ = 438224640. Its totient is φ = 103740192.

The previous prime is 228648821. The next prime is 228648851. The reversal of 228648836 is 638846822.

It is an interprime number because it is at equal distance from previous prime (228648821) and next prime (228648851).

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 34196 + ... + 40331.

It is an arithmetic number, because the mean of its divisors is an integer number (18259360).

Almost surely, 2^228648836 is an apocalyptic number.

228648836 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

228648836 is a deficient number, since it is larger than the sum of its proper divisors (209575804).

228648836 is a wasteful number, since it uses less digits than its factorization.

228648836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74603 (or 74601 counting only the distinct ones).

The product of its digits is 884736, while the sum is 47.

The square root of 228648836 is about 15121.1387137345. The cubic root of 228648836 is about 611.4904304920.

The spelling of 228648836 in words is "two hundred twenty-eight million, six hundred forty-eight thousand, eight hundred thirty-six".