2105678492 has 24 divisors (see below), whose sum is σ = 3802407840. Its totient is φ = 1019651840.

The previous prime is 2105678467. The next prime is 2105678513. The reversal of 2105678492 is 2948765012.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24392 + ... + 69327.

It is an arithmetic number, because the mean of its divisors is an integer number (158433660).

Almost surely, 2^2105678492 is an apocalyptic number.

It is an amenable number.

2105678492 is a deficient number, since it is larger than the sum of its proper divisors (1696729348).

2105678492 is a wasteful number, since it uses less digits than its factorization.

2105678492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93901 (or 93899 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 2105678492 is about 45887.6725493896. The cubic root of 2105678492 is about 1281.7323735570.

The spelling of 2105678492 in words is "two billion, one hundred five million, six hundred seventy-eight thousand, four hundred ninety-two".