2218893 has 4 divisors (see below), whose sum is σ = 2958528. Its totient is φ = 1479260.

The previous prime is 2218883. The next prime is 2218897. The reversal of 2218893 is 3988122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2218893 - 2⁵ = 2218861 is a prime.

It is a super-2 number, since 2×2218893² = 9846972290898, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2¹¹ + 2¹³ + 1 + 8⁵ + 8⁷ + 9⁵ + 3⁹ .

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2218897) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 369813 + ... + 369818.

It is an arithmetic number, because the mean of its divisors is an integer number (739632).

2^2218893 is an apocalyptic number.

It is an amenable number.

2218893 is a deficient number, since it is larger than the sum of its proper divisors (739635).

2218893 is an equidigital number, since it uses as much as digits as its factorization.

2218893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 739634.

The product of its digits is 6912, while the sum is 33.

The square root of 2218893 is about 1489.5949113769. The cubic root of 2218893 is about 130.4303881466.

It can be divided in two parts, 22 and 18893, that added together give a triangular number (18915 = T₁₉₄).

The spelling of 2218893 in words is "two million, two hundred eighteen thousand, eight hundred ninety-three".