2390806 has 16 divisors (see below), whose sum is σ = 3952080. Its totient is φ = 1075680.

The previous prime is 2390803. The next prime is 2390809. The reversal of 2390806 is 6080932.

2390806 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2390803) and next prime (2390809).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2390803) 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 in 7 ways as a sum of consecutive naturals, for example, 1900 + ... + 2896.

It is an arithmetic number, because the mean of its divisors is an integer number (247005).

2^2390806 is an apocalyptic number.

2390806 is a deficient number, since it is larger than the sum of its proper divisors (1561274).

2390806 is a wasteful number, since it uses less digits than its factorization.

2390806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1119.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 2390806 is about 1546.2231404296. The cubic root of 2390806 is about 133.7154054996.

It can be divided in two parts, 239080 and 6, that added together give a triangular number (239086 = T₆₉₁).

The spelling of 2390806 in words is "two million, three hundred ninety thousand, eight hundred six".