1340740033 has 2 divisors, whose sum is σ = 1340740034. Its totient is φ = 1340740032.

The previous prime is 1340740021. The next prime is 1340740087. The reversal of 1340740033 is 3300470431.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1321177104 + 19562929 = 36348^2 + 4423^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1340740033 is a prime.

It is not a weakly prime, because it can be changed into another prime (1340740333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 670370016 + 670370017.

It is an arithmetic number, because the mean of its divisors is an integer number (670370017).

Almost surely, 2^1340740033 is an apocalyptic number.

It is an amenable number.

1340740033 is a deficient number, since it is larger than the sum of its proper divisors (1).

1340740033 is an equidigital number, since it uses as much as digits as its factorization.

1340740033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 25.

The square root of 1340740033 is about 36616.1171207434. The cubic root of 1340740033 is about 1102.6766860834.

The spelling of 1340740033 in words is "one billion, three hundred forty million, seven hundred forty thousand, thirty-three".