228121248 has 24 divisors (see below), whose sum is σ = 598818528. Its totient is φ = 76040384.

The previous prime is 228121247. The next prime is 228121259. The reversal of 228121248 is 842121822.

228121248 is nontrivially palindromic in base 7.

It is a tau number, because it is divible by the number of its divisors (24).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (228121241) 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 3 ways as a sum of consecutive naturals, for example, 1188036 + ... + 1188227.

It is an arithmetic number, because the mean of its divisors is an integer number (24950772).

Almost surely, 2^228121248 is an apocalyptic number.

It is an amenable number.

228121248 is an abundant number, since it is smaller than the sum of its proper divisors (370697280).

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

228121248 is a wasteful number, since it uses less digits than its factorization.

228121248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2376276 (or 2376268 counting only the distinct ones).

The product of its digits is 4096, while the sum is 30.

The square root of 228121248 is about 15103.6832593907. The cubic root of 228121248 is about 611.0197473356.

It can be divided in two parts, 2 and 28121248, that added together give a triangular number (28121250 = T₇₄₉₉).

The spelling of 228121248 in words is "two hundred twenty-eight million, one hundred twenty-one thousand, two hundred forty-eight".