2028312 has 96 divisors (see below), whose sum is σ = 6486480. Its totient is φ = 564480.

The previous prime is 2028293. The next prime is 2028319. The reversal of 2028312 is 2138202.

It is a happy number.

It is a super-2 number, since 2×2028312² = 8228099138688, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2028319) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10198 + ... + 10394.

2^2028312 is an apocalyptic number.

2028312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2028312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3243240).

2028312 is an abundant number, since it is smaller than the sum of its proper divisors (4458168).

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

2028312 is a wasteful number, since it uses less digits than its factorization.

2028312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233 (or 226 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 2028312 is about 1424.1881898120. The cubic root of 2028312 is about 126.5838362748.

The spelling of 2028312 in words is "two million, twenty-eight thousand, three hundred twelve".