2243555 has 8 divisors (see below), whose sum is σ = 2700432. Its totient is φ = 1789408.

The previous prime is 2243551. The next prime is 2243587. The reversal of 2243555 is 5553422.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2243555 - 2² = 2243551 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2243551) 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, 2417 + ... + 3213.

It is an arithmetic number, because the mean of its divisors is an integer number (337554).

2^2243555 is an apocalyptic number.

2243555 is a deficient number, since it is larger than the sum of its proper divisors (456877).

2243555 is an equidigital number, since it uses as much as digits as its factorization.

2243555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1365.

The product of its digits is 6000, while the sum is 26.

The square root of 2243555 is about 1497.8501260139. The cubic root of 2243555 is about 130.9118339218.

Adding to 2243555 its reverse (5553422), we get a palindrome (7796977).

The spelling of 2243555 in words is "two million, two hundred forty-three thousand, five hundred fifty-five".