2111442444 has 96 divisors (see below), whose sum is σ = 5643456000. Its totient is φ = 682188480.

The previous prime is 2111442419. The next prime is 2111442451. The reversal of 2111442444 is 4442441112.

It is a happy number.

2111442444 is a `hidden beast` number, since 211 + 1 + 4 + 4 + 2 + 444 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1241907 + ... + 1243605.

It is an arithmetic number, because the mean of its divisors is an integer number (58786000).

Almost surely, 2^2111442444 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 2111442444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2821728000).

2111442444 is an abundant number, since it is smaller than the sum of its proper divisors (3532013556).

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

2111442444 is a wasteful number, since it uses less digits than its factorization.

2111442444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2060 (or 2052 counting only the distinct ones).

The product of its digits is 4096, while the sum is 27.

The square root of 2111442444 is about 45950.4346442991. The cubic root of 2111442444 is about 1282.9008192832.

Adding to 2111442444 its reverse (4442441112), we get a palindrome (6553883556).

The spelling of 2111442444 in words is "two billion, one hundred eleven million, four hundred forty-two thousand, four hundred forty-four".