340638127 has 4 divisors (see below), whose sum is σ = 348946416. Its totient is φ = 332329840.

The previous prime is 340638113. The next prime is 340638143. The reversal of 340638127 is 721836043.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 340638127 - 2¹⁵ = 340605359 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 340638092 and 340638101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340638107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4154083 + ... + 4154164.

It is an arithmetic number, because the mean of its divisors is an integer number (87236604).

Almost surely, 2^340638127 is an apocalyptic number.

340638127 is a deficient number, since it is larger than the sum of its proper divisors (8308289).

340638127 is an equidigital number, since it uses as much as digits as its factorization.

340638127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8308288.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 340638127 is about 18456.3844509156. The cubic root of 340638127 is about 698.3895815897.

The spelling of 340638127 in words is "three hundred forty million, six hundred thirty-eight thousand, one hundred twenty-seven".