1449766649 has 2 divisors, whose sum is σ = 1449766650. Its totient is φ = 1449766648.

The previous prime is 1449766627. The next prime is 1449766663. The reversal of 1449766649 is 9466679441.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 843031225 + 606735424 = 29035^2 + 24632^2 .

It is a cyclic number.

It is not a de Polignac number, because 1449766649 - 2⁸ = 1449766393 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1449766594 and 1449766603.

It is not a weakly prime, because it can be changed into another prime (1449766049) 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, 724883324 + 724883325.

It is an arithmetic number, because the mean of its divisors is an integer number (724883325).

Almost surely, 2^1449766649 is an apocalyptic number.

It is an amenable number.

1449766649 is a deficient number, since it is larger than the sum of its proper divisors (1).

1449766649 is an equidigital number, since it uses as much as digits as its factorization.

1449766649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7838208, while the sum is 56.

The square root of 1449766649 is about 38075.8013572925. The cubic root of 1449766649 is about 1131.7904757841.

The spelling of 1449766649 in words is "one billion, four hundred forty-nine million, seven hundred sixty-six thousand, six hundred forty-nine".