2272166 has 16 divisors (see below), whose sum is σ = 3695328. Its totient is φ = 1041600.

The previous prime is 2272141. The next prime is 2272177. The reversal of 2272166 is 6612722.

2272166 is digitally balanced in base 2, 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 (26).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7151 + ... + 7461.

It is an arithmetic number, because the mean of its divisors is an integer number (230958).

2^2272166 is an apocalyptic number.

2272166 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2272166 is a deficient number, since it is larger than the sum of its proper divisors (1423162).

2272166 is a wasteful number, since it uses less digits than its factorization.

2272166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607.

The product of its digits is 2016, while the sum is 26.

The square root of 2272166 is about 1507.3705582902. The cubic root of 2272166 is about 131.4659706556.

Adding to 2272166 its reverse (6612722), we get a palindrome (8884888).

The spelling of 2272166 in words is "two million, two hundred seventy-two thousand, one hundred sixty-six".