6438345 has 8 divisors (see below), whose sum is σ = 10301376. Its totient is φ = 3433776.

The previous prime is 6438343. The next prime is 6438361. The reversal of 6438345 is 5438346.

6438345 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 6438345 - 2¹ = 6438343 is a prime.

It is a d-powerful number, because it can be written as 6⁸ + 4³ + 3³ + 8⁵ + 3¹² + 4¹¹ + 5³ .

It is not an unprimeable number, because it can be changed into a prime (6438343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214597 + ... + 214626.

It is an arithmetic number, because the mean of its divisors is an integer number (1287672).

Almost surely, 2^6438345 is an apocalyptic number.

It is an amenable number.

6438345 is a deficient number, since it is larger than the sum of its proper divisors (3863031).

6438345 is a wasteful number, since it uses less digits than its factorization.

6438345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429231.

The product of its digits is 34560, while the sum is 33.

The square root of 6438345 is about 2537.3894064570. The cubic root of 6438345 is about 186.0336105292.

Subtracting from 6438345 its reverse (5438346), we obtain a palindrome (999999).

The spelling of 6438345 in words is "six million, four hundred thirty-eight thousand, three hundred forty-five".