6438064 has 10 divisors (see below), whose sum is σ = 12473780. Its totient is φ = 3219024.

The previous prime is 6438059. The next prime is 6438077. The reversal of 6438064 is 4608346.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201174 + ... + 201205.

It is an arithmetic number, because the mean of its divisors is an integer number (1247378).

Almost surely, 2^6438064 is an apocalyptic number.

It is an amenable number.

6438064 is a deficient number, since it is larger than the sum of its proper divisors (6035716).

6438064 is a wasteful number, since it uses less digits than its factorization.

6438064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402387 (or 402381 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 6438064 is about 2537.3340339813. The cubic root of 6438064 is about 186.0309040260.

The spelling of 6438064 in words is "six million, four hundred thirty-eight thousand, sixty-four".