6400750 has 16 divisors (see below), whose sum is σ = 11982672. Its totient is φ = 2560200.

The previous prime is 6400717. The next prime is 6400753. The reversal of 6400750 is 570046.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6400753) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 12552 + ... + 13051.

It is an arithmetic number, because the mean of its divisors is an integer number (748917).

Almost surely, 2^6400750 is an apocalyptic number.

6400750 is a deficient number, since it is larger than the sum of its proper divisors (5581922).

6400750 is a wasteful number, since it uses less digits than its factorization.

6400750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25620 (or 25610 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 6400750 is about 2529.9703555576. The cubic root of 6400750 is about 185.6708055438.

Adding to 6400750 its reverse (570046), we get a palindrome (6970796).

The spelling of 6400750 in words is "six million, four hundred thousand, seven hundred fifty".