6438488 has 16 divisors (see below), whose sum is σ = 13796880. Its totient is φ = 2759328.

The previous prime is 6438463. The next prime is 6438539. The reversal of 6438488 is 8848346.

It is a super-4 number, since 4×6438488⁴ (a number of 28 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57431 + ... + 57542.

It is an arithmetic number, because the mean of its divisors is an integer number (862305).

Almost surely, 2^6438488 is an apocalyptic number.

It is an amenable number.

6438488 is an abundant number, since it is smaller than the sum of its proper divisors (7358392).

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

6438488 is a wasteful number, since it uses less digits than its factorization.

6438488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114986 (or 114982 counting only the distinct ones).

The product of its digits is 147456, while the sum is 41.

The square root of 6438488 is about 2537.4175848685. The cubic root of 6438488 is about 186.0349878298.

The spelling of 6438488 in words is "six million, four hundred thirty-eight thousand, four hundred eighty-eight".