1001804804 has 144 divisors (see below), whose sum is σ = 2475357696. Its totient is φ = 348364800.

The previous prime is 1001804803. The next prime is 1001804809. The reversal of 1001804804 is 4084081001.

It is a super-2 number, since 2×1001804804² = 2007225730634956832, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (1001804803) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 868292 + ... + 869444.

It is an arithmetic number, because the mean of its divisors is an integer number (17189984).

Almost surely, 2^1001804804 is an apocalyptic number.

1001804804 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 1001804804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1237678848).

1001804804 is an abundant number, since it is smaller than the sum of its proper divisors (1473552892).

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

1001804804 is a wasteful number, since it uses less digits than its factorization.

1001804804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1226 (or 1217 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 26.

The square root of 1001804804 is about 31651.3001944628. The cubic root of 1001804804 is about 1000.6012397716.

Adding to 1001804804 its reverse (4084081001), we get a palindrome (5085885805).

The spelling of 1001804804 in words is "one billion, one million, eight hundred four thousand, eight hundred four".