340648307 has 4 divisors (see below), whose sum is σ = 349855056. Its totient is φ = 331441560.

The previous prime is 340648271. The next prime is 340648313. The reversal of 340648307 is 703846043.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 703846043 = 241 ⋅2920523.

It is not a de Polignac number, because 340648307 - 2⁸ = 340648051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (340648337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4603319 + ... + 4603392.

It is an arithmetic number, because the mean of its divisors is an integer number (87463764).

Almost surely, 2^340648307 is an apocalyptic number.

340648307 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

340648307 is a deficient number, since it is larger than the sum of its proper divisors (9206749).

340648307 is an equidigital number, since it uses as much as digits as its factorization.

340648307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9206748.

The product of its (nonzero) digits is 48384, while the sum is 35.

The square root of 340648307 is about 18456.6602341810. The cubic root of 340648307 is about 698.3965386648.

The spelling of 340648307 in words is "three hundred forty million, six hundred forty-eight thousand, three hundred seven".