2011042404 has 240 divisors, whose sum is σ = 6515042688. Its totient is φ = 527772672.

The previous prime is 2011042399. The next prime is 2011042417. The reversal of 2011042404 is 4042401102.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1657302 + ... + 1658514.

Almost surely, 2^2011042404 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 2011042404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3257521344).

2011042404 is an abundant number, since it is smaller than the sum of its proper divisors (4504000284).

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

2011042404 is a wasteful number, since it uses less digits than its factorization.

2011042404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1296 (or 1285 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 2011042404 is about 44844.6474398004. The cubic root of 2011042404 is about 1262.2355550301.

Adding to 2011042404 its reverse (4042401102), we get a palindrome (6053443506).

The spelling of 2011042404 in words is "two billion, eleven million, forty-two thousand, four hundred four".