2218936 has 16 divisors (see below), whose sum is σ = 4229640. Its totient is φ = 1091040.

The previous prime is 2218933. The next prime is 2218943. The reversal of 2218936 is 6398122.

It is a junction number, because it is equal to n+sod(n) for n = 2218898 and 2218907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2218933) 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, 1786 + ... + 2761.

2^2218936 is an apocalyptic number.

It is an amenable number.

2218936 is a deficient number, since it is larger than the sum of its proper divisors (2010704).

2218936 is a wasteful number, since it uses less digits than its factorization.

2218936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4614 (or 4610 counting only the distinct ones).

The product of its digits is 5184, while the sum is 31.

The square root of 2218936 is about 1489.6093447612. The cubic root of 2218936 is about 130.4312306794.

The spelling of 2218936 in words is "two million, two hundred eighteen thousand, nine hundred thirty-six".