2303866 has 4 divisors (see below), whose sum is σ = 3455802. Its totient is φ = 1151932.

The previous prime is 2303849. The next prime is 2303867. The reversal of 2303866 is 6683032.

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., 1918225 + 385641 = 1385^2 + 621^2 .

It is not an unprimeable number, because it can be changed into a prime (2303867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 575965 + ... + 575968.

2^2303866 is an apocalyptic number.

2303866 is a deficient number, since it is larger than the sum of its proper divisors (1151936).

2303866 is a wasteful number, since it uses less digits than its factorization.

2303866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1151935.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 2303866 is about 1517.8491361133. The cubic root of 2303866 is about 132.0745293839.

Adding to 2303866 its reverse (6683032), we get a palindrome (8986898).

It can be divided in two parts, 23038 and 66, that added together give a square (23104 = 152²).

The spelling of 2303866 in words is "two million, three hundred three thousand, eight hundred sixty-six".