2028915 has 64 divisors (see below), whose sum is σ = 4377600. Its totient is φ = 870912.

The previous prime is 2028907. The next prime is 2028931. The reversal of 2028915 is 5198202.

It is not a de Polignac number, because 2028915 - 2³ = 2028907 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17899 + ... + 18011.

It is an arithmetic number, because the mean of its divisors is an integer number (68400).

2^2028915 is an apocalyptic number.

2028915 is an abundant number, since it is smaller than the sum of its proper divisors (2348685).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2028915 is a wasteful number, since it uses less digits than its factorization.

2028915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153 (or 147 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 2028915 is about 1424.3998736310. The cubic root of 2028915 is about 126.5963791332.

The spelling of 2028915 in words is "two million, twenty-eight thousand, nine hundred fifteen".