2198826 has 60 divisors (see below), whose sum is σ = 5752098. Its totient is φ = 625968.

The previous prime is 2198783. The next prime is 2198827. The reversal of 2198826 is 6288912.

2198826 is nontrivially palindromic in base 5.

It can be written as a sum of positive squares in only one way, i.e., 2099601 + 99225 = 1449^2 + 315^2 .

It is a d-powerful number, because it can be written as 2⁵ + 1 + 9⁵ + 8⁵ + 8⁷ + 2¹¹ + 6⁵ .

It is not an unprimeable number, because it can be changed into a prime (2198827) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 7800 + ... + 8076.

2^2198826 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2198826, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2876049).

2198826 is an abundant number, since it is smaller than the sum of its proper divisors (3553272).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2198826 is a wasteful number, since it uses less digits than its factorization.

2198826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305 (or 289 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 2198826 is about 1482.8438892884. The cubic root of 2198826 is about 130.0360058057.

It can be divided in two parts, 219 and 8826, that added together give a triangular number (9045 = T₁₃₄).

The spelling of 2198826 in words is "two million, one hundred ninety-eight thousand, eight hundred twenty-six".