1011044004 has 12 divisors (see below), whose sum is σ = 2359102704. Its totient is φ = 337014664.

The previous prime is 1011043987. The next prime is 1011044011. The reversal of 1011044004 is 4004401101.

It is a tau number, because it is divible by the number of its divisors (12).

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, 42126822 + ... + 42126845.

It is an arithmetic number, because the mean of its divisors is an integer number (196591892).

Almost surely, 2^1011044004 is an apocalyptic number.

It is an amenable number.

1011044004 is an abundant number, since it is smaller than the sum of its proper divisors (1348058700).

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

1011044004 is a wasteful number, since it uses less digits than its factorization.

1011044004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84253674 (or 84253672 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 1011044004 is about 31796.9181525506. The cubic root of 1011044004 is about 1003.6678649849.

Adding to 1011044004 its reverse (4004401101), we get a palindrome (5015445105).

The spelling of 1011044004 in words is "one billion, eleven million, forty-four thousand, four".