1243004042 has 32 divisors (see below), whose sum is σ = 2228428800. Its totient is φ = 508427568.

The previous prime is 1243004039. The next prime is 1243004051. The reversal of 1243004042 is 2404003421.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150209 + ... + 158267.

It is an arithmetic number, because the mean of its divisors is an integer number (69638400).

Almost surely, 2^1243004042 is an apocalyptic number.

1243004042 is a deficient number, since it is larger than the sum of its proper divisors (985424758).

1243004042 is a wasteful number, since it uses less digits than its factorization.

1243004042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8570.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 1243004042 is about 35256.2624508044. The cubic root of 1243004042 is about 1075.2039395304.

Adding to 1243004042 its reverse (2404003421), we get a palindrome (3647007463).

The spelling of 1243004042 in words is "one billion, two hundred forty-three million, four thousand, forty-two".