1001000004 has 48 divisors (see below), whose sum is σ = 2356948608. Its totient is φ = 330640128.

The previous prime is 1000999949. The next prime is 1001000027. The reversal of 1001000004 is 4000001001.

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a junction number, because it is equal to n+sod(n) for n = 1000999956 and 1001000001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 915282 + ... + 916374.

It is an arithmetic number, because the mean of its divisors is an integer number (49103096).

Almost surely, 2^1001000004 is an apocalyptic number.

It is an amenable number.

1001000004 is an abundant number, since it is smaller than the sum of its proper divisors (1355948604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1001000004 is a wasteful number, since it uses less digits than its factorization.

1001000004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1724 (or 1722 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 6.

The square root of 1001000004 is about 31638.5841023267. The cubic root of 1001000004 is about 1000.3332236164. Note that the first 3 decimals are identical.

Adding to 1001000004 its reverse (4000001001), we get a palindrome (5001001005).

The spelling of 1001000004 in words is "one billion, one million, four", and thus it is an aban number.