1243044242 has 8 divisors (see below), whose sum is σ = 2034072432. Its totient is φ = 565020100.

The previous prime is 1243044241. The next prime is 1243044247. The reversal of 1243044242 is 2424403421.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (1243044241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28250984 + ... + 28251027.

It is an arithmetic number, because the mean of its divisors is an integer number (254259054).

Almost surely, 2^1243044242 is an apocalyptic number.

1243044242 is a deficient number, since it is larger than the sum of its proper divisors (791028190).

1243044242 is a wasteful number, since it uses less digits than its factorization.

1243044242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56502024.

The product of its (nonzero) digits is 6144, while the sum is 26.

The square root of 1243044242 is about 35256.8325576760. The cubic root of 1243044242 is about 1075.2155304641.

Adding to 1243044242 its reverse (2424403421), we get a palindrome (3667447663).

The spelling of 1243044242 in words is "one billion, two hundred forty-three million, forty-four thousand, two hundred forty-two".