1342436749 has 2 divisors, whose sum is σ = 1342436750. Its totient is φ = 1342436748.

The previous prime is 1342436743. The next prime is 1342436759. The reversal of 1342436749 is 9476342431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1280924100 + 61512649 = 35790^2 + 7843^2 .

It is a cyclic number.

It is not a de Polignac number, because 1342436749 - 2⁹ = 1342436237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1342436743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 671218374 + 671218375.

It is an arithmetic number, because the mean of its divisors is an integer number (671218375).

Almost surely, 2^1342436749 is an apocalyptic number.

It is an amenable number.

1342436749 is a deficient number, since it is larger than the sum of its proper divisors (1).

1342436749 is an equidigital number, since it uses as much as digits as its factorization.

1342436749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 435456, while the sum is 43.

The square root of 1342436749 is about 36639.2787729235. The cubic root of 1342436749 is about 1103.1416383883.

The spelling of 1342436749 in words is "one billion, three hundred forty-two million, four hundred thirty-six thousand, seven hundred forty-nine".