6445416 has 32 divisors (see below), whose sum is σ = 16279200. Its totient is φ = 2126400.

The previous prime is 6445409. The next prime is 6445433. The reversal of 6445416 is 6145446.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1095 + ... + 3753.

It is an arithmetic number, because the mean of its divisors is an integer number (508725).

Almost surely, 2^6445416 is an apocalyptic number.

It is an amenable number.

6445416 is an abundant number, since it is smaller than the sum of its proper divisors (9833784).

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

6445416 is a wasteful number, since it uses less digits than its factorization.

6445416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2769 (or 2765 counting only the distinct ones).

The product of its digits is 11520, while the sum is 30.

The square root of 6445416 is about 2538.7823853178. The cubic root of 6445416 is about 186.1016902602.

Adding to 6445416 its sum of digits (30), we get a palindrome (6445446).

The spelling of 6445416 in words is "six million, four hundred forty-five thousand, four hundred sixteen".