6456416 has 24 divisors (see below), whose sum is σ = 12859560. Its totient is φ = 3190528.

The previous prime is 6456403. The next prime is 6456419. The reversal of 6456416 is 6146546.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6456419) 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, 1715 + ... + 3981.

It is an arithmetic number, because the mean of its divisors is an integer number (535815).

Almost surely, 2^6456416 is an apocalyptic number.

It is an amenable number.

6456416 is a deficient number, since it is larger than the sum of its proper divisors (6403144).

6456416 is a wasteful number, since it uses less digits than its factorization.

6456416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2366 (or 2358 counting only the distinct ones).

The product of its digits is 17280, while the sum is 32.

The square root of 6456416 is about 2540.9478546401. The cubic root of 6456416 is about 186.2074995739.

The spelling of 6456416 in words is "six million, four hundred fifty-six thousand, four hundred sixteen".