2293866 has 32 divisors (see below), whose sum is σ = 5158080. Its totient is φ = 755568.

The previous prime is 2293849. The next prime is 2293867. The reversal of 2293866 is 6683922.

It is a d-powerful number, because it can be written as 2¹⁶ + 2¹⁸ + 9 + 3⁸ + 8² + 6⁷ + 6⁸ .

It is a self number, because there is not a number n which added to its sum of digits gives 2293866.

It is not an unprimeable number, because it can be changed into a prime (2293867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5580 + ... + 5976.

It is an arithmetic number, because the mean of its divisors is an integer number (161190).

2^2293866 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2293866, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2579040).

2293866 is an abundant number, since it is smaller than the sum of its proper divisors (2864214).

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

2293866 is a wasteful number, since it uses less digits than its factorization.

2293866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515 (or 509 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 2293866 is about 1514.5514187376. The cubic root of 2293866 is about 131.8831610741.

It can be divided in two parts, 229 and 3866, that added together give a triangular number (4095 = T₉₀).

The spelling of 2293866 in words is "two million, two hundred ninety-three thousand, eight hundred sixty-six".