2243428 has 24 divisors (see below), whose sum is σ = 4352544. Its totient is φ = 1003200.

The previous prime is 2243419. The next prime is 2243429. The reversal of 2243428 is 8243422.

It is not an unprimeable number, because it can be changed into a prime (2243429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2568 + ... + 3328.

It is an arithmetic number, because the mean of its divisors is an integer number (181356).

2^2243428 is an apocalyptic number.

It is an amenable number.

2243428 is a deficient number, since it is larger than the sum of its proper divisors (2109116).

2243428 is a wasteful number, since it uses less digits than its factorization.

2243428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 843 (or 841 counting only the distinct ones).

The product of its digits is 3072, while the sum is 25.

The square root of 2243428 is about 1497.8077313193. The cubic root of 2243428 is about 130.9093637176.

The spelling of 2243428 in words is "two million, two hundred forty-three thousand, four hundred twenty-eight".