6386540 has 12 divisors (see below), whose sum is σ = 13411776. Its totient is φ = 2554608.

The previous prime is 6386531. The next prime is 6386557. The reversal of 6386540 is 456836.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 6386497 and 6386506.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159644 + ... + 159683.

It is an arithmetic number, because the mean of its divisors is an integer number (1117648).

Almost surely, 2^6386540 is an apocalyptic number.

It is an amenable number.

6386540 is an abundant number, since it is smaller than the sum of its proper divisors (7025236).

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

6386540 is a wasteful number, since it uses less digits than its factorization.

6386540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319336 (or 319334 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 6386540 is about 2527.1604618623. The cubic root of 6386540 is about 185.5333041048.

The spelling of 6386540 in words is "six million, three hundred eighty-six thousand, five hundred forty".