2106002784 has 24 divisors (see below), whose sum is σ = 5528257560. Its totient is φ = 702000896.

The previous prime is 2106002779. The next prime is 2106002819. The reversal of 2106002784 is 4872006012.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10968669 + ... + 10968860.

It is an arithmetic number, because the mean of its divisors is an integer number (230344065).

Almost surely, 2^2106002784 is an apocalyptic number.

2106002784 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2106002784 is an abundant number, since it is smaller than the sum of its proper divisors (3422254776).

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

2106002784 is a wasteful number, since it uses less digits than its factorization.

2106002784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21937542 (or 21937534 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 2106002784 is about 45891.2059549539. The cubic root of 2106002784 is about 1281.7981693278.

Adding to 2106002784 its reverse (4872006012), we get a palindrome (6978008796).

The spelling of 2106002784 in words is "two billion, one hundred six million, two thousand, seven hundred eighty-four".