340689733 has 2 divisors, whose sum is σ = 340689734. Its totient is φ = 340689732.

The previous prime is 340689719. The next prime is 340689751. The reversal of 340689733 is 337986043.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 311981569 + 28708164 = 17663^2 + 5358^2 .

It is a cyclic number.

It is not a de Polignac number, because 340689733 - 2⁹ = 340689221 is a prime.

It is a super-2 number, since 2×340689733² = 232138988343222578, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 340689733.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340689233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170344866 + 170344867.

It is an arithmetic number, because the mean of its divisors is an integer number (170344867).

Almost surely, 2^340689733 is an apocalyptic number.

It is an amenable number.

340689733 is a deficient number, since it is larger than the sum of its proper divisors (1).

340689733 is an equidigital number, since it uses as much as digits as its factorization.

340689733 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 326592, while the sum is 43.

The square root of 340689733 is about 18457.7824507713. The cubic root of 340689733 is about 698.4248480206.

It can be divided in two parts, 3406 and 89733, that added together give a palindrome (93139).

The spelling of 340689733 in words is "three hundred forty million, six hundred eighty-nine thousand, seven hundred thirty-three".