340340407 has 32 divisors (see below), whose sum is σ = 412439040. Its totient is φ = 277200000.

The previous prime is 340340389. The next prime is 340340423. The reversal of 340340407 is 704043043.

It is not a de Polignac number, because 340340407 - 2⁷ = 340340279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340340107) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 485157 + ... + 485857.

It is an arithmetic number, because the mean of its divisors is an integer number (12888720).

Almost surely, 2^340340407 is an apocalyptic number.

340340407 is a deficient number, since it is larger than the sum of its proper divisors (72098633).

340340407 is a wasteful number, since it uses less digits than its factorization.

340340407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855.

The product of its (nonzero) digits is 4032, while the sum is 25.

The square root of 340340407 is about 18448.3171861284. The cubic root of 340340407 is about 698.1860565632.

The spelling of 340340407 in words is "three hundred forty million, three hundred forty thousand, four hundred seven".