2218526 has 8 divisors (see below), whose sum is σ = 3346920. Its totient is φ = 1102888.

The previous prime is 2218523. The next prime is 2218547. The reversal of 2218526 is 6258122.

2218526 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2218526² = 9843715225352, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2218495 and 2218504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2218523) 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 3 ways as a sum of consecutive naturals, for example, 2741 + ... + 3456.

It is an arithmetic number, because the mean of its divisors is an integer number (418365).

2^2218526 is an apocalyptic number.

2218526 is a deficient number, since it is larger than the sum of its proper divisors (1128394).

2218526 is a wasteful number, since it uses less digits than its factorization.

2218526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6378.

The product of its digits is 1920, while the sum is 26.

The square root of 2218526 is about 1489.4717184291. The cubic root of 2218526 is about 130.4231967841.

It can be divided in two parts, 2218 and 526, that added together give a cube (2744 = 14³).

The spelling of 2218526 in words is "two million, two hundred eighteen thousand, five hundred twenty-six".