1224662449 has 2 divisors, whose sum is σ = 1224662450. Its totient is φ = 1224662448.

The previous prime is 1224662447. The next prime is 1224662501. The reversal of 1224662449 is 9442664221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 832899600 + 391762849 = 28860^2 + 19793^2 .

It is a cyclic number.

It is not a de Polignac number, because 1224662449 - 2¹ = 1224662447 is a prime.

It is a super-2 number, since 2×1224662449² = 2999596227981355202, which contains 22 as substring.

Together with 1224662447, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1224662441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 612331224 + 612331225.

It is an arithmetic number, because the mean of its divisors is an integer number (612331225).

Almost surely, 2^1224662449 is an apocalyptic number.

It is an amenable number.

1224662449 is a deficient number, since it is larger than the sum of its proper divisors (1).

1224662449 is an equidigital number, since it uses as much as digits as its factorization.

1224662449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 165888, while the sum is 40.

The square root of 1224662449 is about 34995.1775106228. The cubic root of 1224662449 is about 1069.8891925315.

The spelling of 1224662449 in words is "one billion, two hundred twenty-four million, six hundred sixty-two thousand, four hundred forty-nine".