1005004424 has 8 divisors (see below), whose sum is σ = 1884383310. Its totient is φ = 502502208.

The previous prime is 1005004417. The next prime is 1005004447. The reversal of 1005004424 is 4244005001.

It can be written as a sum of positive squares in only one way, i.e., 992880100 + 12124324 = 31510^2 + 3482^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 1005004396 and 1005004405.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62812769 + ... + 62812784.

Almost surely, 2^1005004424 is an apocalyptic number.

It is an amenable number.

1005004424 is a deficient number, since it is larger than the sum of its proper divisors (879378886).

1005004424 is a wasteful number, since it uses less digits than its factorization.

1005004424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125625559 (or 125625555 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 1005004424 is about 31701.8047435789. The cubic root of 1005004424 is about 1001.6653663487.

Adding to 1005004424 its reverse (4244005001), we get a palindrome (5249009425).

The spelling of 1005004424 in words is "one billion, five million, four thousand, four hundred twenty-four".