6449814 has 64 divisors (see below), whose sum is σ = 16634880. Its totient is φ = 1814400.

The previous prime is 6449791. The next prime is 6449827. The reversal of 6449814 is 4189446.

It is a happy number.

6449814 is a `hidden beast` number, since 644 + 9 + 8 + 1 + 4 = 666.

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 31 ways as a sum of consecutive naturals, for example, 42639 + ... + 42789.

It is an arithmetic number, because the mean of its divisors is an integer number (259920).

Almost surely, 2^6449814 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6449814, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8317440).

6449814 is an abundant number, since it is smaller than the sum of its proper divisors (10185066).

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

6449814 is a wasteful number, since it uses less digits than its factorization.

6449814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282 (or 276 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 6449814 is about 2539.6484008618. The cubic root of 6449814 is about 186.1440091807.

The spelling of 6449814 in words is "six million, four hundred forty-nine thousand, eight hundred fourteen".