2243178 has 48 divisors (see below), whose sum is σ = 5853120. Its totient is φ = 606528.

The previous prime is 2243177. The next prime is 2243183. The reversal of 2243178 is 8713422.

It is not an unprimeable number, because it can be changed into a prime (2243177) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1926 + ... + 2862.

It is an arithmetic number, because the mean of its divisors is an integer number (121940).

2^2243178 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2243178, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2926560).

2243178 is an abundant number, since it is smaller than the sum of its proper divisors (3609942).

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

2243178 is a wasteful number, since it uses less digits than its factorization.

2243178 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 971 (or 968 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 2243178 is about 1497.7242736899. The cubic root of 2243178 is about 130.9045008386.

The spelling of 2243178 in words is "two million, two hundred forty-three thousand, one hundred seventy-eight".