6446472 has 64 divisors (see below), whose sum is σ = 17299200. Its totient is φ = 1995840.

The previous prime is 6446459. The next prime is 6446477. The reversal of 6446472 is 2746446.

It is not an unprimeable number, because it can be changed into a prime (6446477) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30447 + ... + 30657.

It is an arithmetic number, because the mean of its divisors is an integer number (270300).

Almost surely, 2^6446472 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 6446472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8649600).

6446472 is an abundant number, since it is smaller than the sum of its proper divisors (10852728).

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

6446472 is a wasteful number, since it uses less digits than its factorization.

6446472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306 (or 302 counting only the distinct ones).

The product of its digits is 32256, while the sum is 33.

The square root of 6446472 is about 2538.9903505134. The cubic root of 6446472 is about 186.1118531756. Note that the first 3 decimals are identical.

The spelling of 6446472 in words is "six million, four hundred forty-six thousand, four hundred seventy-two".