1011000004 has 48 divisors (see below), whose sum is σ = 2075673600. Its totient is φ = 421850016.

The previous prime is 1010999971. The next prime is 1011000007. The reversal of 1011000004 is 4000001101.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (7).

It is not an unprimeable number, because it can be changed into a prime (1011000007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 431067 + ... + 433405.

It is an arithmetic number, because the mean of its divisors is an integer number (43243200).

Almost surely, 2^1011000004 is an apocalyptic number.

1011000004 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1011000004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1037836800).

1011000004 is an abundant number, since it is smaller than the sum of its proper divisors (1064673596).

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

1011000004 is a wasteful number, since it uses less digits than its factorization.

1011000004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2752 (or 2750 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 1011000004 is about 31796.2262540698. The cubic root of 1011000004 is about 1003.6533051087.

Adding to 1011000004 its reverse (4000001101), we get a palindrome (5011001105).

The spelling of 1011000004 in words is "one billion, eleven million, four", and thus it is an aban number.