340140307 has 16 divisors (see below), whose sum is σ = 387959040. Its totient is φ = 295824672.

The previous prime is 340140293. The next prime is 340140323. The reversal of 340140307 is 703041043.

It is a happy number.

It is not a de Polignac number, because 340140307 - 2¹⁹ = 339616019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (340140347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11544 + ... + 28522.

It is an arithmetic number, because the mean of its divisors is an integer number (24247440).

Almost surely, 2^340140307 is an apocalyptic number.

340140307 is a deficient number, since it is larger than the sum of its proper divisors (47818733).

340140307 is a wasteful number, since it uses less digits than its factorization.

340140307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17082.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 340140307 is about 18442.8931298753. The cubic root of 340140307 is about 698.0491990564.

The spelling of 340140307 in words is "three hundred forty million, one hundred forty thousand, three hundred seven".