538422449 has 2 divisors, whose sum is σ = 538422450. Its totient is φ = 538422448.

The previous prime is 538422421. The next prime is 538422457. The reversal of 538422449 is 944224835.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 504316849 + 34105600 = 22457^2 + 5840^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-538422449 is a prime.

It is not a weakly prime, because it can be changed into another prime (538422349) 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 as a sum of consecutive naturals, namely, 269211224 + 269211225.

It is an arithmetic number, because the mean of its divisors is an integer number (269211225).

Almost surely, 2^538422449 is an apocalyptic number.

It is an amenable number.

538422449 is a deficient number, since it is larger than the sum of its proper divisors (1).

538422449 is an equidigital number, since it uses as much as digits as its factorization.

538422449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 276480, while the sum is 41.

The square root of 538422449 is about 23203.9317573553. The cubic root of 538422449 is about 813.5315240648.

The spelling of 538422449 in words is "five hundred thirty-eight million, four hundred twenty-two thousand, four hundred forty-nine".