2664228 has 72 divisors (see below), whose sum is σ = 7584192. Its totient is φ = 724416.

The previous prime is 2664227. The next prime is 2664229. The reversal of 2664228 is 8224662.

2664228 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2664227) and next prime (2664229).

It is a super-2 number, since 2×2664228² = 14196221671968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2664195 and 2664204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2664227) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13426 + ... + 13622.

It is an arithmetic number, because the mean of its divisors is an integer number (105336).

2^2664228 is an apocalyptic number.

2664228 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2664228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3792096).

2664228 is an abundant number, since it is smaller than the sum of its proper divisors (4919964).

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

2664228 is a wasteful number, since it uses less digits than its factorization.

2664228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241 (or 232 counting only the distinct ones).

The product of its digits is 9216, while the sum is 30.

The square root of 2664228 is about 1632.2463049430. The cubic root of 2664228 is about 138.6299700520.

The spelling of 2664228 in words is "two million, six hundred sixty-four thousand, two hundred twenty-eight".