2115928 has 16 divisors (see below), whose sum is σ = 4064760. Its totient is φ = 1032000.

The previous prime is 2115923. The next prime is 2115937. The reversal of 2115928 is 8295112.

It is a junction number, because it is equal to n+sod(n) for n = 2115896 and 2115905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2115923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2898 + ... + 3553.

2^2115928 is an apocalyptic number.

It is an amenable number.

2115928 is a deficient number, since it is larger than the sum of its proper divisors (1948832).

2115928 is a wasteful number, since it uses less digits than its factorization.

2115928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6498 (or 6494 counting only the distinct ones).

The product of its digits is 1440, while the sum is 28.

The square root of 2115928 is about 1454.6229752070. The cubic root of 2115928 is about 128.3808643112.

It can be divided in two parts, 211592 and 8, that added together give a square (211600 = 460²).

The spelling of 2115928 in words is "two million, one hundred fifteen thousand, nine hundred twenty-eight".