2235866 has 4 divisors (see below), whose sum is σ = 3353802. Its totient is φ = 1117932.

The previous prime is 2235859. The next prime is 2235869. The reversal of 2235866 is 6685322.

2235866 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., 2235025 + 841 = 1495^2 + 29^2 .

It is a d-powerful number, because it can be written as 2⁴ + 2¹⁴ + 3¹² + 5⁴ + 8 + 6⁵ + 6⁸ .

It is not an unprimeable number, because it can be changed into a prime (2235869) 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, 558965 + ... + 558968.

2^2235866 is an apocalyptic number.

2235866 is a deficient number, since it is larger than the sum of its proper divisors (1117936).

2235866 is a wasteful number, since it uses less digits than its factorization.

2235866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1117935.

The product of its digits is 17280, while the sum is 32.

The square root of 2235866 is about 1495.2812444487. The cubic root of 2235866 is about 130.7621112440.

The spelling of 2235866 in words is "two million, two hundred thirty-five thousand, eight hundred sixty-six".