6440150 has 24 divisors (see below), whose sum is σ = 12072144. Its totient is φ = 2556000.

The previous prime is 6440149. The next prime is 6440171. The reversal of 6440150 is 510446.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7124 + ... + 7976.

It is an arithmetic number, because the mean of its divisors is an integer number (503006).

Almost surely, 2^6440150 is an apocalyptic number.

6440150 is a deficient number, since it is larger than the sum of its proper divisors (5631994).

6440150 is a wasteful number, since it uses less digits than its factorization.

6440150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1016 (or 1011 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 6440150 is about 2537.7450620580. The cubic root of 6440150 is about 186.0509938419.

Adding to 6440150 its reverse (510446), we get a palindrome (6950596).

The spelling of 6440150 in words is "six million, four hundred forty thousand, one hundred fifty".