2285818 has 4 divisors (see below), whose sum is σ = 3428730. Its totient is φ = 1142908.

The previous prime is 2285813. The next prime is 2285821. The reversal of 2285818 is 8185822.

It is a happy number.

2285818 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 1885129 + 400689 = 1373^2 + 633^2 .

It is not an unprimeable number, because it can be changed into a prime (2285813) by changing a digit.

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 as a sum of consecutive naturals, namely, 571453 + ... + 571456.

2^2285818 is an apocalyptic number.

2285818 is a deficient number, since it is larger than the sum of its proper divisors (1142912).

2285818 is a wasteful number, since it uses less digits than its factorization.

2285818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1142911.

The product of its digits is 10240, while the sum is 34.

The square root of 2285818 is about 1511.8921919237. The cubic root of 2285818 is about 131.7287435386.

The spelling of 2285818 in words is "two million, two hundred eighty-five thousand, eight hundred eighteen".