6390536 has 16 divisors (see below), whose sum is σ = 12613200. Its totient is φ = 3027024.

The previous prime is 6390533. The next prime is 6390541. The reversal of 6390536 is 6350936.

It is not an unprimeable number, because it can be changed into a prime (6390533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20870 + ... + 21173.

It is an arithmetic number, because the mean of its divisors is an integer number (788325).

Almost surely, 2^6390536 is an apocalyptic number.

It is an amenable number.

6390536 is a deficient number, since it is larger than the sum of its proper divisors (6222664).

6390536 is a wasteful number, since it uses less digits than its factorization.

6390536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42068 (or 42064 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 32.

The square root of 6390536 is about 2527.9509488912. The cubic root of 6390536 is about 185.5719915375.

The spelling of 6390536 in words is "six million, three hundred ninety thousand, five hundred thirty-six".