340856269 has 12 divisors (see below), whose sum is σ = 374614176. Its totient is φ = 309930192.

The previous prime is 340856261. The next prime is 340856279. The reversal of 340856269 is 962658043.

It is not a de Polignac number, because 340856269 - 2³ = 340856261 is a prime.

It is a super-2 number, since 2×340856269² = 232365992233200722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340856261) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 3729 + ... + 26374.

It is an arithmetic number, because the mean of its divisors is an integer number (31217848).

Almost surely, 2^340856269 is an apocalyptic number.

It is an amenable number.

340856269 is a deficient number, since it is larger than the sum of its proper divisors (33757907).

340856269 is a wasteful number, since it uses less digits than its factorization.

340856269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30196 (or 30183 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 43.

The square root of 340856269 is about 18462.2931674264. The cubic root of 340856269 is about 698.5386308581.

The spelling of 340856269 in words is "three hundred forty million, eight hundred fifty-six thousand, two hundred sixty-nine".