1238449 has 2 divisors, whose sum is σ = 1238450. Its totient is φ = 1238448.

The previous prime is 1238437. The next prime is 1238459. The reversal of 1238449 is 9448321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1221025 + 17424 = 1105^2 + 132^2 .

It is a cyclic number.

It is not a de Polignac number, because 1238449 - 2¹⁵ = 1205681 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1238449.

It is not a weakly prime, because it can be changed into another prime (1238429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 619224 + 619225.

It is an arithmetic number, because the mean of its divisors is an integer number (619225).

2^1238449 is an apocalyptic number.

It is an amenable number.

1238449 is a deficient number, since it is larger than the sum of its proper divisors (1).

1238449 is an equidigital number, since it uses as much as digits as its factorization.

1238449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6912, while the sum is 31.

The square root of 1238449 is about 1112.8562350996. The cubic root of 1238449 is about 107.3888954855.

The spelling of 1238449 in words is "one million, two hundred thirty-eight thousand, four hundred forty-nine".