2201828 has 6 divisors (see below), whose sum is σ = 3853206. Its totient is φ = 1100912.

The previous prime is 2201827. The next prime is 2201839. The reversal of 2201828 is 8281022.

It can be written as a sum of positive squares in only one way, i.e., 1763584 + 438244 = 1328^2 + 662^2 .

It is not an unprimeable number, because it can be changed into a prime (2201827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275225 + ... + 275232.

It is an arithmetic number, because the mean of its divisors is an integer number (642201).

2^2201828 is an apocalyptic number.

It is an amenable number.

2201828 is a deficient number, since it is larger than the sum of its proper divisors (1651378).

2201828 is a wasteful number, since it uses less digits than its factorization.

2201828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550461 (or 550459 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 23.

The square root of 2201828 is about 1483.8557881412. The cubic root of 2201828 is about 130.0951571545.

Adding to 2201828 its sum of digits (23), we get a triangular number (2201851 = T₂₀₉₈).

It can be divided in two parts, 220 and 1828, that added together give a 11-th power (2048 = 2¹¹).

The spelling of 2201828 in words is "two million, two hundred one thousand, eight hundred twenty-eight".