2028864 has 28 divisors (see below), whose sum is σ = 5368544. Its totient is φ = 676224.

The previous prime is 2028863. The next prime is 2028881. The reversal of 2028864 is 4688202.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2028863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5092 + ... + 5475.

2^2028864 is an apocalyptic number.

2028864 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2028864 is an abundant number, since it is smaller than the sum of its proper divisors (3339680).

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

2028864 is a wasteful number, since it uses less digits than its factorization.

2028864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10582 (or 10572 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 2028864 is about 1424.3819712423. The cubic root of 2028864 is about 126.5953183907.

The spelling of 2028864 in words is "two million, twenty-eight thousand, eight hundred sixty-four".