2011444004 has 12 divisors (see below), whose sum is σ = 3528636300. Its totient is φ = 1003262208.

The previous prime is 2011443997. The next prime is 2011444009. The reversal of 2011444004 is 4004441102.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1905147904 + 106296100 = 43648^2 + 10310^2 .

It is not an unprimeable number, because it can be changed into a prime (2011444009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 613109 + ... + 616380.

It is an arithmetic number, because the mean of its divisors is an integer number (294053025).

Almost surely, 2^2011444004 is an apocalyptic number.

It is an amenable number.

2011444004 is a deficient number, since it is larger than the sum of its proper divisors (1517192296).

2011444004 is a wasteful number, since it uses less digits than its factorization.

2011444004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1229902 (or 1229900 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 2011444004 is about 44849.1248967023. The cubic root of 2011444004 is about 1262.3195711700.

Adding to 2011444004 its reverse (4004441102), we get a palindrome (6015885106).

The spelling of 2011444004 in words is "two billion, eleven million, four hundred forty-four thousand, four".