2133928 has 32 divisors (see below), whose sum is σ = 4284000. Its totient is φ = 993600.

The previous prime is 2133899. The next prime is 2133949. The reversal of 2133928 is 8293312.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2133896 and 2133905.

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, 15283 + ... + 15421.

It is an arithmetic number, because the mean of its divisors is an integer number (133875).

2^2133928 is an apocalyptic number.

It is an amenable number.

2133928 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

2133928 is a wasteful number, since it uses less digits than its factorization.

2133928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265 (or 261 counting only the distinct ones).

The product of its digits is 2592, while the sum is 28.

The square root of 2133928 is about 1460.7970427133. The cubic root of 2133928 is about 128.7438781769.

The spelling of 2133928 in words is "two million, one hundred thirty-three thousand, nine hundred twenty-eight".