340472273 has 2 divisors, whose sum is σ = 340472274. Its totient is φ = 340472272.

The previous prime is 340472257. The next prime is 340472309. The reversal of 340472273 is 372274043.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 320696464 + 19775809 = 17908^2 + 4447^2 .

It is a cyclic number.

It is not a de Polignac number, because 340472273 - 2⁴ = 340472257 is a prime.

It is not a weakly prime, because it can be changed into another prime (340471273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170236136 + 170236137.

It is an arithmetic number, because the mean of its divisors is an integer number (170236137).

Almost surely, 2^340472273 is an apocalyptic number.

It is an amenable number.

340472273 is a deficient number, since it is larger than the sum of its proper divisors (1).

340472273 is an equidigital number, since it uses as much as digits as its factorization.

340472273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28224, while the sum is 32.

The square root of 340472273 is about 18451.8907703249. The cubic root of 340472273 is about 698.2762164077.

The spelling of 340472273 in words is "three hundred forty million, four hundred seventy-two thousand, two hundred seventy-three".