2243242 has 4 divisors (see below), whose sum is σ = 3364866. Its totient is φ = 1121620.

The previous prime is 2243221. The next prime is 2243251. The reversal of 2243242 is 2423422.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2099601 + 143641 = 1449^2 + 379^2 .

It is a plaindrome in base 16.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560809 + ... + 560812.

2^2243242 is an apocalyptic number.

2243242 is a deficient number, since it is larger than the sum of its proper divisors (1121624).

2243242 is a wasteful number, since it uses less digits than its factorization.

2243242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1121623.

The product of its digits is 768, while the sum is 19.

The square root of 2243242 is about 1497.7456392859. The cubic root of 2243242 is about 130.9057457701.

Adding to 2243242 its reverse (2423422), we get a palindrome (4666664).

It can be divided in two parts, 2243 and 242, that added together give a triangular number (2485 = T₇₀).

The spelling of 2243242 in words is "two million, two hundred forty-three thousand, two hundred forty-two".