2021288 has 16 divisors (see below), whose sum is σ = 3806880. Its totient is φ = 1006128.

The previous prime is 2021251. The next prime is 2021291. The reversal of 2021288 is 8821202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2045 + ... + 2867.

It is an arithmetic number, because the mean of its divisors is an integer number (237930).

2^2021288 is an apocalyptic number.

It is an amenable number.

2021288 is a deficient number, since it is larger than the sum of its proper divisors (1785592).

2021288 is a wasteful number, since it uses less digits than its factorization.

2021288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1136 (or 1132 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 23.

The square root of 2021288 is about 1421.7200849675. The cubic root of 2021288 is about 126.4375482637.

The spelling of 2021288 in words is "two million, twenty-one thousand, two hundred eighty-eight".