340450233209 has 2 divisors, whose sum is σ = 340450233210. Its totient is φ = 340450233208.

The previous prime is 340450233187. The next prime is 340450233241. The reversal of 340450233209 is 902332054043.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 315538345984 + 24911887225 = 561728^2 + 157835^2 .

It is a cyclic number.

It is not a de Polignac number, because 340450233209 - 2²⁰ = 340449184633 is a prime.

It is a super-2 number, since 2×340450233209² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (340450230209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170225116604 + 170225116605.

It is an arithmetic number, because the mean of its divisors is an integer number (170225116605).

Almost surely, 2^340450233209 is an apocalyptic number.

It is an amenable number.

340450233209 is a deficient number, since it is larger than the sum of its proper divisors (1).

340450233209 is an equidigital number, since it uses as much as digits as its factorization.

340450233209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 35.

The spelling of 340450233209 in words is "three hundred forty billion, four hundred fifty million, two hundred thirty-three thousand, two hundred nine".