2011813404 has 96 divisors (see below), whose sum is σ = 5334336000. Its totient is φ = 586688256.

The previous prime is 2011813403. The next prime is 2011813411. The reversal of 2011813404 is 4043181102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011813403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 145462 + ... + 158690.

It is an arithmetic number, because the mean of its divisors is an integer number (55566000).

Almost surely, 2^2011813404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2011813404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2667168000).

2011813404 is an abundant number, since it is smaller than the sum of its proper divisors (3322522596).

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

2011813404 is a wasteful number, since it uses less digits than its factorization.

2011813404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13307 (or 13305 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 2011813404 is about 44853.2429596791. The cubic root of 2011813404 is about 1262.3968410826.

Adding to 2011813404 its reverse (4043181102), we get a palindrome (6054994506).

The spelling of 2011813404 in words is "two billion, eleven million, eight hundred thirteen thousand, four hundred four".