6470440 has 16 divisors (see below), whose sum is σ = 14558580. Its totient is φ = 2588160.

The previous prime is 6470437. The next prime is 6470467. The reversal of 6470440 is 440746.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6421156 + 49284 = 2534^2 + 222^2 .

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, 80841 + ... + 80920.

Almost surely, 2^6470440 is an apocalyptic number.

It is an amenable number.

6470440 is an abundant number, since it is smaller than the sum of its proper divisors (8088140).

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

6470440 is a wasteful number, since it uses less digits than its factorization.

6470440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161772 (or 161768 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 6470440 is about 2543.7059578497. The cubic root of 6470440 is about 186.3422226942.

The spelling of 6470440 in words is "six million, four hundred seventy thousand, four hundred forty".