6438380 has 24 divisors (see below), whose sum is σ = 14561232. Its totient is φ = 2377152.

The previous prime is 6438379. The next prime is 6438391. The reversal of 6438380 is 838346.

It is a d-powerful number, because it can be written as 6⁸ + 4¹¹ + 3⁵ + 8 + 3¹² + 8⁵ + 0 .

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, 12122 + ... + 12641.

It is an arithmetic number, because the mean of its divisors is an integer number (606718).

Almost surely, 2^6438380 is an apocalyptic number.

It is an amenable number.

6438380 is an abundant number, since it is smaller than the sum of its proper divisors (8122852).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6438380 is a wasteful number, since it uses less digits than its factorization.

6438380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24785 (or 24783 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 6438380 is about 2537.3963032999. The cubic root of 6438380 is about 186.0339476327.

The spelling of 6438380 in words is "six million, four hundred thirty-eight thousand, three hundred eighty".