2128244 has 6 divisors (see below), whose sum is σ = 3724434. Its totient is φ = 1064120.

The previous prime is 2128241. The next prime is 2128253. The reversal of 2128244 is 4428212.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1690000 + 438244 = 1300^2 + 662^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2128241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 266027 + ... + 266034.

It is an arithmetic number, because the mean of its divisors is an integer number (620739).

2^2128244 is an apocalyptic number.

It is an amenable number.

2128244 is a deficient number, since it is larger than the sum of its proper divisors (1596190).

2128244 is a wasteful number, since it uses less digits than its factorization.

2128244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532065 (or 532063 counting only the distinct ones).

The product of its digits is 1024, while the sum is 23.

The square root of 2128244 is about 1458.8502322034. The cubic root of 2128244 is about 128.6294677410.

Subtracting 2128244 from its reverse (4428212), we obtain a cube (2299968 = 132³).

The spelling of 2128244 in words is "two million, one hundred twenty-eight thousand, two hundred forty-four".