6486044040 has 96 divisors (see below), whose sum is σ = 24091030080. Its totient is φ = 1482523776.

The previous prime is 6486044023. The next prime is 6486044083. The reversal of 6486044040 is 404406846.

6486044040 is a `hidden beast` number, since 6 + 4 + 8 + 604 + 4 + 0 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 6486043986 and 6486044004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1284394 + ... + 1289433.

It is an arithmetic number, because the mean of its divisors is an integer number (250948230).

Almost surely, 2^6486044040 is an apocalyptic number.

6486044040 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6486044040 is an abundant number, since it is smaller than the sum of its proper divisors (17604986040).

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

6486044040 is a wasteful number, since it uses less digits than its factorization.

6486044040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2573851 (or 2573844 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 36.

The square root of 6486044040 is about 80535.9797854350. The cubic root of 6486044040 is about 1864.9189604138.

It can be divided in two parts, 64860 and 44040, that added together give a square (108900 = 330²).

The spelling of 6486044040 in words is "six billion, four hundred eighty-six million, forty-four thousand, forty".