6477040 has 20 divisors (see below), whose sum is σ = 15059304. Its totient is φ = 2590784.

The previous prime is 6477019. The next prime is 6477049. The reversal of 6477040 is 407746.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6477049) by changing a digit.

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, 40402 + ... + 40561.

Almost surely, 2^6477040 is an apocalyptic number.

It is an amenable number.

6477040 is an abundant number, since it is smaller than the sum of its proper divisors (8582264).

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

6477040 is a wasteful number, since it uses less digits than its factorization.

6477040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80976 (or 80970 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 6477040 is about 2545.0029469531. The cubic root of 6477040 is about 186.4055589714.

The spelling of 6477040 in words is "six million, four hundred seventy-seven thousand, forty".