2218708 has 6 divisors (see below), whose sum is σ = 3882746. Its totient is φ = 1109352.

The previous prime is 2218691. The next prime is 2218709. The reversal of 2218708 is 8078122.

2218708 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1844164 + 374544 = 1358^2 + 612^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2218709) 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, 277335 + ... + 277342.

2^2218708 is an apocalyptic number.

It is an amenable number.

2218708 is a deficient number, since it is larger than the sum of its proper divisors (1664038).

2218708 is a wasteful number, since it uses less digits than its factorization.

2218708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554681 (or 554679 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 2218708 is about 1489.5328126631. The cubic root of 2218708 is about 130.4267631720.

It can be divided in two parts, 2218 and 708, that added together give a triangular number (2926 = T₇₆).

The spelling of 2218708 in words is "two million, two hundred eighteen thousand, seven hundred eight".