1242444004 has 12 divisors (see below), whose sum is σ = 2174975404. Its totient is φ = 621022464.

The previous prime is 1242444001. The next prime is 1242444011. The reversal of 1242444004 is 4004442421.

It can be written as a sum of positive squares in 2 ways, for example, as 1123590400 + 118853604 = 33520^2 + 10902^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1242444004.

It is not an unprimeable number, because it can be changed into a prime (1242444001) 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, 35409 + ... + 61144.

Almost surely, 2^1242444004 is an apocalyptic number.

It is an amenable number.

1242444004 is a deficient number, since it is larger than the sum of its proper divisors (932531400).

1242444004 is a wasteful number, since it uses less digits than its factorization.

1242444004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99774 (or 99772 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 25.

The square root of 1242444004 is about 35248.3191655999. The cubic root of 1242444004 is about 1075.0424368320.

Adding to 1242444004 its reverse (4004442421), we get a palindrome (5246886425).

The spelling of 1242444004 in words is "one billion, two hundred forty-two million, four hundred forty-four thousand, four".