2218232 has 8 divisors (see below), whose sum is σ = 4159200. Its totient is φ = 1109112.

The previous prime is 2218219. The next prime is 2218277. The reversal of 2218232 is 2328122.

2218232 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

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, 138632 + ... + 138647.

It is an arithmetic number, because the mean of its divisors is an integer number (519900).

2^2218232 is an apocalyptic number.

It is an amenable number.

2218232 is a deficient number, since it is larger than the sum of its proper divisors (1940968).

2218232 is a wasteful number, since it uses less digits than its factorization.

2218232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277285 (or 277281 counting only the distinct ones).

The product of its digits is 384, while the sum is 20.

The square root of 2218232 is about 1489.3730224494. The cubic root of 2218232 is about 130.4174352840.

It can be divided in two parts, 22 and 18232, that multiplied together give a palindrome (401104).

The spelling of 2218232 in words is "two million, two hundred eighteen thousand, two hundred thirty-two".