228678541 has 12 divisors (see below), whose sum is σ = 286477212. Its totient is φ = 180931968.

The previous prime is 228678539. The next prime is 228678551. The reversal of 228678541 is 145876822.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 69388900 + 159289641 = 8330^2 + 12621^2 .

It is not a de Polignac number, because 228678541 - 2¹ = 228678539 is a prime.

It is a super-2 number, since 2×228678541² = 104587750227777362, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228678511) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 178860 + ... + 180133.

It is an arithmetic number, because the mean of its divisors is an integer number (23873101).

Almost surely, 2^228678541 is an apocalyptic number.

It is an amenable number.

228678541 is a deficient number, since it is larger than the sum of its proper divisors (57798671).

228678541 is a wasteful number, since it uses less digits than its factorization.

228678541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359020 (or 359013 counting only the distinct ones).

The product of its digits is 215040, while the sum is 43.

The square root of 228678541 is about 15122.1209160620. The cubic root of 228678541 is about 611.5169100155.

The spelling of 228678541 in words is "two hundred twenty-eight million, six hundred seventy-eight thousand, five hundred forty-one".