6446484 has 72 divisors (see below), whose sum is σ = 18100992. Its totient is φ = 1918080.

The previous prime is 6446483. The next prime is 6446507. The reversal of 6446484 is 4846446.

6446484 is a `hidden beast` number, since 6 + 4 + 4 + 648 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6446483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28797 + ... + 29019.

Almost surely, 2^6446484 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6446484, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9050496).

6446484 is an abundant number, since it is smaller than the sum of its proper divisors (11654508).

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

6446484 is a wasteful number, since it uses less digits than its factorization.

6446484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317 (or 312 counting only the distinct ones).

The product of its digits is 73728, while the sum is 36.

The square root of 6446484 is about 2538.9927136563. The cubic root of 6446484 is about 186.1119686569. Note that the first 3 decimals are identical.

The spelling of 6446484 in words is "six million, four hundred forty-six thousand, four hundred eighty-four".