6449988 has 48 divisors (see below), whose sum is σ = 15747200. Its totient is φ = 2052864.

The previous prime is 6449923. The next prime is 6450007. The reversal of 6449988 is 8899446.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32313 + ... + 32511.

Almost surely, 2^6449988 is an apocalyptic number.

It is an amenable number.

6449988 is an abundant number, since it is smaller than the sum of its proper divisors (9297212).

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

6449988 is a wasteful number, since it uses less digits than its factorization.

6449988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316 (or 314 counting only the distinct ones).

The product of its digits is 497664, while the sum is 48.

The square root of 6449988 is about 2539.6826573413. The cubic root of 6449988 is about 186.1456830671.

The spelling of 6449988 in words is "six million, four hundred forty-nine thousand, nine hundred eighty-eight".