6478880 has 24 divisors (see below), whose sum is σ = 15306732. Its totient is φ = 2591488.

The previous prime is 6478841. The next prime is 6478883. The reversal of 6478880 is 888746.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5895184 + 583696 = 2428^2 + 764^2 .

It is not an unprimeable number, because it can be changed into a prime (6478883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20087 + ... + 20406.

Almost surely, 2^6478880 is an apocalyptic number.

It is an amenable number.

6478880 is an abundant number, since it is smaller than the sum of its proper divisors (8827852).

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

6478880 is a wasteful number, since it uses less digits than its factorization.

6478880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40508 (or 40500 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 41.

The square root of 6478880 is about 2545.3644139887. The cubic root of 6478880 is about 186.4232086877.

The spelling of 6478880 in words is "six million, four hundred seventy-eight thousand, eight hundred eighty".