2101004444 has 24 divisors (see below), whose sum is σ = 4584010368. Its totient is φ = 818573040.

The previous prime is 2101004443. The next prime is 2101004453. The reversal of 2101004444 is 4444001012.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101004443) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3410414 + ... + 3411029.

It is an arithmetic number, because the mean of its divisors is an integer number (191000432).

Almost surely, 2^2101004444 is an apocalyptic number.

It is an amenable number.

2101004444 is an abundant number, since it is smaller than the sum of its proper divisors (2483005924).

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

2101004444 is a wasteful number, since it uses less digits than its factorization.

2101004444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6821465 (or 6821463 counting only the distinct ones).

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

The square root of 2101004444 is about 45836.7150219123. The cubic root of 2101004444 is about 1280.7833022948.

Adding to 2101004444 its reverse (4444001012), we get a palindrome (6545005456).

The spelling of 2101004444 in words is "two billion, one hundred one million, four thousand, four hundred forty-four".