340280888989 has 2 divisors, whose sum is σ = 340280888990. Its totient is φ = 340280888988.

The previous prime is 340280888839. The next prime is 340280888999. The reversal of 340280888989 is 989888082043.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 275908572900 + 64372316089 = 525270^2 + 253717^2 .

It is a cyclic number.

It is not a de Polignac number, because 340280888989 - 2²⁹ = 339744018077 is a prime.

It is a super-2 number, since 2×340280888989² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340280888999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170140444494 + 170140444495.

It is an arithmetic number, because the mean of its divisors is an integer number (170140444495).

Almost surely, 2^340280888989 is an apocalyptic number.

It is an amenable number.

340280888989 is a deficient number, since it is larger than the sum of its proper divisors (1).

340280888989 is an equidigital number, since it uses as much as digits as its factorization.

340280888989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 63700992, while the sum is 67.

The spelling of 340280888989 in words is "three hundred forty billion, two hundred eighty million, eight hundred eighty-eight thousand, nine hundred eighty-nine".