6445828 has 12 divisors (see below), whose sum is σ = 11299792. Its totient is φ = 3217320.

The previous prime is 6445823. The next prime is 6445841. The reversal of 6445828 is 8285446.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (6445823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2251 + ... + 4237.

Almost surely, 2^6445828 is an apocalyptic number.

It is an amenable number.

6445828 is a deficient number, since it is larger than the sum of its proper divisors (4853964).

6445828 is a wasteful number, since it uses less digits than its factorization.

6445828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2802 (or 2800 counting only the distinct ones).

The product of its digits is 61440, while the sum is 37.

The square root of 6445828 is about 2538.8635252806. The cubic root of 6445828 is about 186.1056554691.

The spelling of 6445828 in words is "six million, four hundred forty-five thousand, eight hundred twenty-eight".