1233404449 has 2 divisors, whose sum is σ = 1233404450. Its totient is φ = 1233404448.

The previous prime is 1233404413. The next prime is 1233404461. The reversal of 1233404449 is 9444043321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1136027025 + 97377424 = 33705^2 + 9868^2 .

It is an emirp because it is prime and its reverse (9444043321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1233404449 - 2⁹ = 1233403937 is a prime.

It is not a weakly prime, because it can be changed into another prime (1233404479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 616702224 + 616702225.

It is an arithmetic number, because the mean of its divisors is an integer number (616702225).

Almost surely, 2^1233404449 is an apocalyptic number.

It is an amenable number.

1233404449 is a deficient number, since it is larger than the sum of its proper divisors (1).

1233404449 is an equidigital number, since it uses as much as digits as its factorization.

1233404449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 34.

The square root of 1233404449 is about 35119.8583283020. The cubic root of 1233404449 is about 1072.4288867456.

The spelling of 1233404449 in words is "one billion, two hundred thirty-three million, four hundred four thousand, four hundred forty-nine".