2243916 has 48 divisors (see below), whose sum is σ = 5913600. Its totient is φ = 735696.

The previous prime is 2243911. The next prime is 2243959. The reversal of 2243916 is 6193422.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 2243916.

It is not an unprimeable number, because it can be changed into a prime (2243911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8401 + ... + 8663.

It is an arithmetic number, because the mean of its divisors is an integer number (123200).

2^2243916 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2243916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2956800).

2243916 is an abundant number, since it is smaller than the sum of its proper divisors (3669684).

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

2243916 is a wasteful number, since it uses less digits than its factorization.

2243916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355 (or 347 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 2243916 is about 1497.9706272154. The cubic root of 2243916 is about 130.9188550167.

The spelling of 2243916 in words is "two million, two hundred forty-three thousand, nine hundred sixteen".