6494440 has 32 divisors (see below), whose sum is σ = 14697000. Its totient is φ = 2582784.

The previous prime is 6494417. The next prime is 6494443. The reversal of 6494440 is 444946.

It can be written as a sum of positive squares in 4 ways, for example, as 5466244 + 1028196 = 2338^2 + 1014^2 .

It is not an unprimeable number, because it can be changed into a prime (6494443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8806 + ... + 9514.

Almost surely, 2^6494440 is an apocalyptic number.

It is an amenable number.

6494440 is an abundant number, since it is smaller than the sum of its proper divisors (8202560).

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

6494440 is a wasteful number, since it uses less digits than its factorization.

6494440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 949 (or 945 counting only the distinct ones).

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

The square root of 6494440 is about 2548.4191178062. The cubic root of 6494440 is about 186.5723304510.

The spelling of 6494440 in words is "six million, four hundred ninety-four thousand, four hundred forty".