228548839 has 4 divisors (see below), whose sum is σ = 228579120. Its totient is φ = 228518560.

The previous prime is 228548809. The next prime is 228548849. The reversal of 228548839 is 938845822.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 228548839 - 2¹³ = 228540647 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 228548792 and 228548801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228548809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6342 + ... + 22300.

It is an arithmetic number, because the mean of its divisors is an integer number (57144780).

Almost surely, 2^228548839 is an apocalyptic number.

228548839 is a deficient number, since it is larger than the sum of its proper divisors (30281).

228548839 is a wasteful number, since it uses less digits than its factorization.

228548839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30280.

The product of its digits is 1105920, while the sum is 49.

The square root of 228548839 is about 15117.8318220570. The cubic root of 228548839 is about 611.4012746700.

The spelling of 228548839 in words is "two hundred twenty-eight million, five hundred forty-eight thousand, eight hundred thirty-nine".