1000440004 has 12 divisors (see below), whose sum is σ = 1853756604. Its totient is φ = 470795264.

The previous prime is 1000439981. The next prime is 1000440013. The reversal of 1000440004 is 4000440001.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 342620100 + 657819904 = 18510^2 + 25648^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7356109 + ... + 7356244.

It is an arithmetic number, because the mean of its divisors is an integer number (154479717).

Almost surely, 2^1000440004 is an apocalyptic number.

It is an amenable number.

1000440004 is a deficient number, since it is larger than the sum of its proper divisors (853316600).

1000440004 is a wasteful number, since it uses less digits than its factorization.

1000440004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14712374 (or 14712372 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 1000440004 is about 31629.7329106649. The cubic root of 1000440004 is about 1000.1466464938.

Adding to 1000440004 its reverse (4000440001), we get a palindrome (5000880005).

The spelling of 1000440004 in words is "one billion, four hundred forty thousand, four".