340522639 has 2 divisors, whose sum is σ = 340522640. Its totient is φ = 340522638.

The previous prime is 340522621. The next prime is 340522657. The reversal of 340522639 is 936225043.

It is a balanced prime because it is at equal distance from previous prime (340522621) and next prime (340522657).

It is a cyclic number.

It is not a de Polignac number, because 340522639 - 2¹⁷ = 340391567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340562639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170261319 + 170261320.

It is an arithmetic number, because the mean of its divisors is an integer number (170261320).

Almost surely, 2^340522639 is an apocalyptic number.

340522639 is a deficient number, since it is larger than the sum of its proper divisors (1).

340522639 is an equidigital number, since it uses as much as digits as its factorization.

340522639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 34.

The square root of 340522639 is about 18453.2555122396. The cubic root of 340522639 is about 698.3106466670.

The spelling of 340522639 in words is "three hundred forty million, five hundred twenty-two thousand, six hundred thirty-nine".