6449888 has 24 divisors (see below), whose sum is σ = 12941208. Its totient is φ = 3163264.

The previous prime is 6449887. The next prime is 6449897. The reversal of 6449888 is 8889446.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6449881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 206 + ... + 3597.

It is an arithmetic number, because the mean of its divisors is an integer number (539217).

Almost surely, 2^6449888 is an apocalyptic number.

It is an amenable number.

6449888 is an abundant number, since it is smaller than the sum of its proper divisors (6491320).

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

6449888 is a wasteful number, since it uses less digits than its factorization.

6449888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3866 (or 3858 counting only the distinct ones).

The product of its digits is 442368, while the sum is 47.

The square root of 6449888 is about 2539.6629697659. The cubic root of 6449888 is about 186.1447210671.

It can be divided in two parts, 6449 and 888, that added together give a palindrome (7337).

The spelling of 6449888 in words is "six million, four hundred forty-nine thousand, eight hundred eighty-eight".