1020044004 has 48 divisors (see below), whose sum is σ = 2723202048. Its totient is φ = 291110688.

The previous prime is 1020043993. The next prime is 1020044023. The reversal of 1020044004 is 4004400201.

1020044004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73137 + ... + 85959.

It is an arithmetic number, because the mean of its divisors is an integer number (56733376).

Almost surely, 2^1020044004 is an apocalyptic number.

1020044004 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1020044004 is an abundant number, since it is smaller than the sum of its proper divisors (1703158044).

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

1020044004 is a wasteful number, since it uses less digits than its factorization.

1020044004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13784 (or 13782 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 1020044004 is about 31938.1277472553. The cubic root of 1020044004 is about 1006.6371849813.

Adding to 1020044004 its reverse (4004400201), we get a palindrome (5024444205).

The spelling of 1020044004 in words is "one billion, twenty million, forty-four thousand, four".