2228664 has 16 divisors (see below), whose sum is σ = 5571720. Its totient is φ = 742880.

The previous prime is 2228663. The next prime is 2228687. The reversal of 2228664 is 4668222.

2228664 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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

It is a d-powerful number, because it can be written as 2¹⁶ + 2²⁰ + 2²⁰ + 8 + 6³ + 6³ + 4⁸ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2228663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46407 + ... + 46454.

2^2228664 is an apocalyptic number.

2228664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2228664 is an abundant number, since it is smaller than the sum of its proper divisors (3343056).

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

2228664 is a wasteful number, since it uses less digits than its factorization.

2228664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92870 (or 92866 counting only the distinct ones).

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

The square root of 2228664 is about 1492.8710594020. The cubic root of 2228664 is about 130.6215599317.

The spelling of 2228664 in words is "two million, two hundred twenty-eight thousand, six hundred sixty-four".