2213828 has 6 divisors (see below), whose sum is σ = 3874206. Its totient is φ = 1106912.

The previous prime is 2213789. The next prime is 2213833. The reversal of 2213828 is 8283122.

It can be written as a sum of positive squares in only one way, i.e., 1844164 + 369664 = 1358^2 + 608^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2213797 and 2213806.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 276725 + ... + 276732.

It is an arithmetic number, because the mean of its divisors is an integer number (645701).

2^2213828 is an apocalyptic number.

It is an amenable number.

2213828 is a deficient number, since it is larger than the sum of its proper divisors (1660378).

2213828 is a wasteful number, since it uses less digits than its factorization.

2213828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553461 (or 553459 counting only the distinct ones).

The product of its digits is 1536, while the sum is 26.

The square root of 2213828 is about 1487.8938134155. The cubic root of 2213828 is about 130.3310693691.

The spelling of 2213828 in words is "two million, two hundred thirteen thousand, eight hundred twenty-eight".