340709405 has 8 divisors (see below), whose sum is σ = 414953952. Its totient is φ = 268499088.

The previous prime is 340709389. The next prime is 340709417. The reversal of 340709405 is 504907043.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 340709405 - 2⁴ = 340709389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 508187 + ... + 508856.

It is an arithmetic number, because the mean of its divisors is an integer number (51869244).

Almost surely, 2^340709405 is an apocalyptic number.

It is an amenable number.

340709405 is a deficient number, since it is larger than the sum of its proper divisors (74244547).

340709405 is a wasteful number, since it uses less digits than its factorization.

340709405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1017115.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 340709405 is about 18458.3153348294. The cubic root of 340709405 is about 698.4382905049.

The spelling of 340709405 in words is "three hundred forty million, seven hundred nine thousand, four hundred five".