228354949 has 2 divisors, whose sum is σ = 228354950. Its totient is φ = 228354948.

The previous prime is 228354943. The next prime is 228354979. The reversal of 228354949 is 949453822.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 228312100 + 42849 = 15110^2 + 207^2 .

It is a cyclic number.

It is not a de Polignac number, because 228354949 - 2¹⁵ = 228322181 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 228354899 and 228354908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228354943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114177474 + 114177475.

It is an arithmetic number, because the mean of its divisors is an integer number (114177475).

Almost surely, 2^228354949 is an apocalyptic number.

It is an amenable number.

228354949 is a deficient number, since it is larger than the sum of its proper divisors (1).

228354949 is an equidigital number, since it uses as much as digits as its factorization.

228354949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 622080, while the sum is 46.

The square root of 228354949 is about 15111.4178355309. The cubic root of 228354949 is about 611.2283311363.

The spelling of 228354949 in words is "two hundred twenty-eight million, three hundred fifty-four thousand, nine hundred forty-nine".