340507073 has 2 divisors, whose sum is σ = 340507074. Its totient is φ = 340507072.

The previous prime is 340507043. The next prime is 340507099. The reversal of 340507073 is 370705043.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 178275904 + 162231169 = 13352^2 + 12737^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-340507073 is a prime.

It is not a weakly prime, because it can be changed into another prime (340507003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170253536 + 170253537.

It is an arithmetic number, because the mean of its divisors is an integer number (170253537).

Almost surely, 2^340507073 is an apocalyptic number.

It is an amenable number.

340507073 is a deficient number, since it is larger than the sum of its proper divisors (1).

340507073 is an equidigital number, since it uses as much as digits as its factorization.

340507073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8820, while the sum is 29.

The square root of 340507073 is about 18452.8337390223. The cubic root of 340507073 is about 698.3000060928.

The spelling of 340507073 in words is "three hundred forty million, five hundred seven thousand, seventy-three".