2243630234 has 4 divisors (see below), whose sum is σ = 3365445354. Its totient is φ = 1121815116.

The previous prime is 2243630227. The next prime is 2243630237. The reversal of 2243630234 is 4320363422.

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., 2002294009 + 241336225 = 44747^2 + 15535^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2243630197 and 2243630206.

It is not an unprimeable number, because it can be changed into a prime (2243630237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560907557 + ... + 560907560.

Almost surely, 2^2243630234 is an apocalyptic number.

2243630234 is a deficient number, since it is larger than the sum of its proper divisors (1121815120).

2243630234 is a wasteful number, since it uses less digits than its factorization.

2243630234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1121815119.

The product of its (nonzero) digits is 20736, while the sum is 29.

The square root of 2243630234 is about 47366.9740853266. The cubic root of 2243630234 is about 1309.1329721120.

Adding to 2243630234 its reverse (4320363422), we get a palindrome (6563993656).

The spelling of 2243630234 in words is "two billion, two hundred forty-three million, six hundred thirty thousand, two hundred thirty-four".