228480949 has 2 divisors, whose sum is σ = 228480950. Its totient is φ = 228480948.

The previous prime is 228480869. The next prime is 228480953. The reversal of 228480949 is 949084822.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 162384049 + 66096900 = 12743^2 + 8130^2 .

It is a cyclic number.

It is not a de Polignac number, because 228480949 - 2¹³ = 228472757 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 228480899 and 228480908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228480979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114240474 + 114240475.

It is an arithmetic number, because the mean of its divisors is an integer number (114240475).

Almost surely, 2^228480949 is an apocalyptic number.

It is an amenable number.

228480949 is a deficient number, since it is larger than the sum of its proper divisors (1).

228480949 is an equidigital number, since it uses as much as digits as its factorization.

228480949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 331776, while the sum is 46.

The square root of 228480949 is about 15115.5862936242. The cubic root of 228480949 is about 611.3407301443.

The spelling of 228480949 in words is "two hundred twenty-eight million, four hundred eighty thousand, nine hundred forty-nine".