2229812 has 24 divisors (see below), whose sum is σ = 4246536. Its totient is φ = 1018368.

The previous prime is 2229809. The next prime is 2229823. The reversal of 2229812 is 2189222.

It can be written as a sum of positive squares in 4 ways, for example, as 27556 + 2202256 = 166^2 + 1484^2 .

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

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 (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6968 + ... + 7280.

It is an arithmetic number, because the mean of its divisors is an integer number (176939).

2^2229812 is an apocalyptic number.

It is an amenable number.

2229812 is a deficient number, since it is larger than the sum of its proper divisors (2016724).

2229812 is a wasteful number, since it uses less digits than its factorization.

2229812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467 (or 465 counting only the distinct ones).

The product of its digits is 1152, while the sum is 26.

The square root of 2229812 is about 1493.2555039242. The cubic root of 2229812 is about 130.6439841001.

The spelling of 2229812 in words is "two million, two hundred twenty-nine thousand, eight hundred twelve".