2106928 has 20 divisors (see below), whose sum is σ = 4193680. Its totient is φ = 1024704.

The previous prime is 2106919. The next prime is 2106931. The reversal of 2106928 is 8296012.

It is a happy number.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2106896 and 2106905.

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, 1188 + ... + 2371.

It is an arithmetic number, because the mean of its divisors is an integer number (209684).

2^2106928 is an apocalyptic number.

It is an amenable number.

2106928 is a deficient number, since it is larger than the sum of its proper divisors (2086752).

2106928 is a wasteful number, since it uses less digits than its factorization.

2106928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3604 (or 3598 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 2106928 is about 1451.5260934616. The cubic root of 2106928 is about 128.1985849761.

The spelling of 2106928 in words is "two million, one hundred six thousand, nine hundred twenty-eight".