340042727 has 2 divisors, whose sum is σ = 340042728. Its totient is φ = 340042726.

The previous prime is 340042723. The next prime is 340042771. The reversal of 340042727 is 727240043.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 340042727 - 2² = 340042723 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 340042727.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340042723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170021363 + 170021364.

It is an arithmetic number, because the mean of its divisors is an integer number (170021364).

Almost surely, 2^340042727 is an apocalyptic number.

340042727 is a deficient number, since it is larger than the sum of its proper divisors (1).

340042727 is an equidigital number, since it uses as much as digits as its factorization.

340042727 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9408, while the sum is 29.

The square root of 340042727 is about 18440.2474766474. The cubic root of 340042727 is about 697.9824401786.

The spelling of 340042727 in words is "three hundred forty million, forty-two thousand, seven hundred twenty-seven".