340386407 has 6 divisors (see below), whose sum is σ = 355278168. Its totient is φ = 325502364.

The previous prime is 340386383. The next prime is 340386433. The reversal of 340386407 is 704683043.

It is not a de Polignac number, because 340386407 - 2²⁴ = 323609191 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 (340386437) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 86558 + ... + 90404.

It is an arithmetic number, because the mean of its divisors is an integer number (59213028).

Almost surely, 2^340386407 is an apocalyptic number.

340386407 is a deficient number, since it is larger than the sum of its proper divisors (14891761).

340386407 is an frugal number, since it uses more digits than its factorization.

340386407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7717 (or 3870 counting only the distinct ones).

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

The square root of 340386407 is about 18449.5638701840. The cubic root of 340386407 is about 698.2175104753.

The spelling of 340386407 in words is "three hundred forty million, three hundred eighty-six thousand, four hundred seven".