6441228 has 96 divisors (see below), whose sum is σ = 18233600. Its totient is φ = 1959552.

The previous prime is 6441199. The next prime is 6441229. The reversal of 6441228 is 8221446.

6441228 is a `hidden beast` number, since 644 + 12 + 2 + 8 = 666.

6441228 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (6441229) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 88200 + ... + 88272.

Almost surely, 2^6441228 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 6441228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9116800).

6441228 is an abundant number, since it is smaller than the sum of its proper divisors (11792372).

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

6441228 is a wasteful number, since it uses less digits than its factorization.

6441228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148 (or 140 counting only the distinct ones).

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

The square root of 6441228 is about 2537.9574464518. The cubic root of 6441228 is about 186.0613741271.

The spelling of 6441228 in words is "six million, four hundred forty-one thousand, two hundred twenty-eight".