340041047 has 2 divisors, whose sum is σ = 340041048. Its totient is φ = 340041046.

The previous prime is 340041029. The next prime is 340041049. The reversal of 340041047 is 740140043.

It is a strong prime.

It is an emirp because it is prime and its reverse (740140043) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 340041047 - 2¹⁶ = 339975511 is a prime.

Together with 340041049, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340041049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170020523 + 170020524.

It is an arithmetic number, because the mean of its divisors is an integer number (170020524).

Almost surely, 2^340041047 is an apocalyptic number.

340041047 is a deficient number, since it is larger than the sum of its proper divisors (1).

340041047 is an equidigital number, since it uses as much as digits as its factorization.

340041047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 340041047 is about 18440.2019240571. The cubic root of 340041047 is about 697.9812907030.

The spelling of 340041047 in words is "three hundred forty million, forty-one thousand, forty-seven".