6481224 has 24 divisors (see below), whose sum is σ = 17553510. Its totient is φ = 2160384.

The previous prime is 6481219. The next prime is 6481243. The reversal of 6481224 is 4221846.

6481224 is a `hidden beast` number, since 648 + 12 + 2 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 4284900 + 2196324 = 2070^2 + 1482^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 44937 + ... + 45080.

Almost surely, 2^6481224 is an apocalyptic number.

It is an amenable number.

6481224 is an abundant number, since it is smaller than the sum of its proper divisors (11072286).

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

6481224 is a wasteful number, since it uses less digits than its factorization.

6481224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90029 (or 90022 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

The square root of 6481224 is about 2545.8248172253. The cubic root of 6481224 is about 186.4456880521.

The spelling of 6481224 in words is "six million, four hundred eighty-one thousand, two hundred twenty-four".