2228386 has 4 divisors (see below), whose sum is σ = 3342582. Its totient is φ = 1114192.

The previous prime is 2228383. The next prime is 2228393. The reversal of 2228386 is 6838222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2047761 + 180625 = 1431^2 + 425^2 .

It is not an unprimeable number, because it can be changed into a prime (2228383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 557095 + ... + 557098.

2^2228386 is an apocalyptic number.

2228386 is a deficient number, since it is larger than the sum of its proper divisors (1114196).

2228386 is a wasteful number, since it uses less digits than its factorization.

2228386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1114195.

The product of its digits is 9216, while the sum is 31.

The square root of 2228386 is about 1492.7779473184. Note that the first 3 decimals coincide. The cubic root of 2228386 is about 130.6161285307.

The spelling of 2228386 in words is "two million, two hundred twenty-eight thousand, three hundred eighty-six".