340353423 has 12 divisors (see below), whose sum is σ = 503612928. Its totient is φ = 221367840.

The previous prime is 340353421. The next prime is 340353427. The reversal of 340353423 is 324353043.

It is a happy number.

It is not a de Polignac number, because 340353423 - 2¹ = 340353421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340353421) 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, 460815 + ... + 461552.

It is an arithmetic number, because the mean of its divisors is an integer number (41967744).

Almost surely, 2^340353423 is an apocalyptic number.

340353423 is a deficient number, since it is larger than the sum of its proper divisors (163259505).

340353423 is a wasteful number, since it uses less digits than its factorization.

340353423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 922414 (or 922411 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 27.

The square root of 340353423 is about 18448.6699520589. The cubic root of 340353423 is about 698.1949569403.

The spelling of 340353423 in words is "three hundred forty million, three hundred fifty-three thousand, four hundred twenty-three".