340750643 has 2 divisors, whose sum is σ = 340750644. Its totient is φ = 340750642.

The previous prime is 340750573. The next prime is 340750673. The reversal of 340750643 is 346057043.

It is a strong prime.

It is an emirp because it is prime and its reverse (346057043) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 340750643 - 2²⁶ = 273641779 is a prime.

It is a super-2 number, since 2×340750643² = 232222001409826898, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (340750673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170375321 + 170375322.

It is an arithmetic number, because the mean of its divisors is an integer number (170375322).

Almost surely, 2^340750643 is an apocalyptic number.

340750643 is a deficient number, since it is larger than the sum of its proper divisors (1).

340750643 is an equidigital number, since it uses as much as digits as its factorization.

340750643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 32.

The square root of 340750643 is about 18459.4323585532. The cubic root of 340750643 is about 698.4664680230.

The spelling of 340750643 in words is "three hundred forty million, seven hundred fifty thousand, six hundred forty-three".