2104139684 has 6 divisors (see below), whose sum is σ = 3682244454. Its totient is φ = 1052069840.

The previous prime is 2104139671. The next prime is 2104139729. The reversal of 2104139684 is 4869314012.

It can be written as a sum of positive squares in only one way, i.e., 1654699684 + 449440000 = 40678^2 + 21200^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 263017457 + ... + 263017464.

It is an arithmetic number, because the mean of its divisors is an integer number (613707409).

Almost surely, 2^2104139684 is an apocalyptic number.

It is an amenable number.

2104139684 is a deficient number, since it is larger than the sum of its proper divisors (1578104770).

2104139684 is a wasteful number, since it uses less digits than its factorization.

2104139684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526034925 (or 526034923 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 2104139684 is about 45870.9023674050. The cubic root of 2104139684 is about 1281.4200718946.

The spelling of 2104139684 in words is "two billion, one hundred four million, one hundred thirty-nine thousand, six hundred eighty-four".