2011144404 has 24 divisors (see below), whose sum is σ = 4968710208. Its totient is φ = 630947200.

The previous prime is 2011144381. The next prime is 2011144417. The reversal of 2011144404 is 4044411102.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4929072 + ... + 4929479.

It is an arithmetic number, because the mean of its divisors is an integer number (207029592).

Almost surely, 2^2011144404 is an apocalyptic number.

It is an amenable number.

2011144404 is an abundant number, since it is smaller than the sum of its proper divisors (2957565804).

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

2011144404 is a wasteful number, since it uses less digits than its factorization.

2011144404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9858575 (or 9858573 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 2011144404 is about 44845.7846848508. The cubic root of 2011144404 is about 1262.2568948503.

Adding to 2011144404 its reverse (4044411102), we get a palindrome (6055555506).

The spelling of 2011144404 in words is "two billion, eleven million, one hundred forty-four thousand, four hundred four".